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Arnav Vivek Sen asked a question
Subject: Physics, asked on on 3/5/16
Derive the relation " Current density = Conductivity x Electric Field".
Sushant Sharma asked a question
Subject: Physics, asked on on 19/4/16
when we join +ve and -vecharge of the battery it makes a spark . why?
Vaishnavi asked a question
Subject: Physics, asked on on 27/5/16
Two bulbs P and Q are rated 100W, 200W and 50W, 220V respectively. They are connected in parallel across 22V source. The current in the two bulbs P and Q are respectively ?
Dazy asked a question
Subject: Physics, asked on on 11/5/17
It is found that two resistors R1 and R2 offer a resistance of 16,12,4 and 3ohm when they are connected jointly or singly.what are their Individual resistance?.here what it mean by the jointly and singly.solve it without sending any link plzz.
Kavin asked a question
Subject: Physics, asked on on 20/4/16
what is bifurcation?
Reema asked a question
Subject: Physics, asked on on 27/8/17
2 small spheres,each having a mass of 20 g,are suspended from a common point by 2 identical strings of length 40cm.the spheres are identically charged and h separation between the balls at equilibrium is found to be 4cm.Find the charge on each sphere
Hruda Nanda Panda asked a question
Subject: Physics, asked on on 20/4/16
why it is better to use gold foil in eletroscope instead of Al foil ?
Reema asked a question
Subject: Physics, asked on on 30/8/17
2 particles A and B,each having a charge Q placed a distance d apart.Where should a particle of charge q be placed on the perpendicular bisector of AB so that it experiences maximum force
Parneet Hundal asked a question
Subject: Physics, asked on on 26/4/16
electric current will flow from negative to positive or positive to negative?
Vaishnavi asked a question
Subject: Physics, asked on on 27/5/16
a 1500W electric geyser is used everyday for 2hrs. calculate the electric energy consumed for a day 
Kshitiz Anand asked a question
Subject: Physics, asked on on 25/4/16
what is the significance of the quantanisation of charge?
Kavin asked a question
Subject: Physics, asked on on 5/7/16

 

Use the following information to answer the next question.

 

A 10 volt battery with negligible internal resistance is connected in a circuit, as shown in the given figure. What will be the current (I) in the circuit?
Rushil Patel asked a question
Subject: Physics, asked on on 8/5/17
FIND THE NET RESISTANCE BETWEEN A AND B .
​
Vaishnavi asked a question
Subject: Physics, asked on on 27/5/16
which will consume more energy a 600W refrigirator working for 2 hs or a bulb of 100 W working for 14 hrs?
Vaishnavi asked a question
Subject: Physics, asked on on 27/5/16
the net resistance of two resistors in parallel combination is 2 ohm and in series it is 9 ohm. the two resistances are ?
Arnav Vivek Sen asked a question
Subject: Physics, asked on on 22/4/16
What is Galvanometer ? How is it used in a circuit ?
Bhaven Bubna asked a question
Subject: Physics, asked on on 30/5/17
Expalain why inert gas like argon is filled in bulbs?
Shourya Sharma asked a question
Subject: Physics, asked on on 24/8/16
are charges located on the positive and negative terminal of a battery?
Reema asked a question
Subject: Physics, asked on on 31/8/17
3 identical small balls each of mass0.1g,are suspended at one point on silk thread having a length of l=20cm.what charges should be imparted to te bals for each thread to form an angle of alpha=30degrees with the vertical
Rounabh Sahu asked a question
Subject: Physics, asked on on 3/5/16
WHY VOLTMETERS ARE CONNECTED PARALLEL TO THE CIRCUIT??
Ms Eccentric asked a question
Subject: Physics, asked on on 12/5/17
Electriccurrent means flow of electrons, then why the direction of electrons is different from the direction of current ??
Pradhikshana K.p asked a question
Subject: Physics, asked on on 24/5/16
If a student has two copper wire with same length and same area of cross section. the will the resistence be same? and will the resistence be equal to resistivity?
Vaishnavi asked a question
Subject: Physics, asked on on 27/5/16
a piece of wire of resistance R is cut into n equal parts. these parts are then connected in parallel. if the equivalent resistance of paralell combination is R' then (R/R')is?
Rajeeb Biswas asked a question
Subject: Physics, asked on on 18/9/17
A concave mirror produces 3 times magnified real image of an object placed at 10 cm in front of it. Where is the image located?
Pls answer in full steps and no links please!!
Sandal Agarwal asked a question
Subject: Physics, asked on on 3/5/16
WHY ONLY" R " AS THE CONSTANT IN THE OHMS LAW
Kshitiz Anand asked a question
Subject: Physics, asked on on 26/5/16
We know that resistance is directly proprtionl to voltage and we also know that voltage is directly proportional to current.But when we increase resistance voltage increases but current decreases although p.d is directly proportional to current.Why?
Swastik Paul asked a question
Subject: Physics, asked on on 18/2/17
hey sir
can u please give a tough circuit to calculate the equivalent resistance
Akshatha Prasanna asked a question
Subject: Physics, asked on on 17/3/20
what is the symbol for charge , Q or C ??
Sandal Agarwal asked a question
Subject: Physics, asked on on 3/6/16
why when current passes through the cu wire all the free electrond move to positive terminal why??
Sandal Agarwal asked a question
Subject: Physics, asked on on 20/5/16
why does fuse wire gets heat up?
Sandal Agarwal asked a question
Subject: Physics, asked on on 17/5/16
we connect our house fittings in parallel combination.Then how will fuse stop the whole circuit as only that will stop.
Srijan Ghosh asked a question
Subject: Physics, asked on on 7/6/16
direction of flow of current is same as the direction of flow of electron?
Sj asked a question
Subject: Physics, asked on on 16/5/17
  1. what is charge? and what is electricity
Reema asked a question
Subject: Physics, asked on on 17/8/17
3 charges 2q,Q,and q are placed in a straight line at the points o,x and 2x respectively.The net force on q is 0.Then the Q should be
Ravinder Singh asked a question
Subject: Physics, asked on on 31/5/17
m lnkjbnkljnbllm,
Ameya J. Purohit asked a question
Subject: Physics, asked on on 10/4/17
hi sir i have a doubt in this chapter that electric potential is work done to move a one unit positive charge from one point to another but how battery which is an electric potential device perform work and does voltage also affect velocity of current and what is the benefitof high voltage?
-Ameya Purohit
Shubhodeep Mitra asked a question
Subject: Physics, asked on on 29/4/17
If R=V/I then why does R not depend on V and I?
Akaash asked a question
Subject: Physics, asked on on 17/4/17
sir 1 columb = how many joules
Gouri Lahoti asked a question
Subject: Physics, asked on on 17/4/17
Can n be negative?
Krishna Chaitanya asked a question
Subject: Physics, asked on on 20/5/17
An extension wire is used for operating a television set through a 220 V mains supply. The power dissipation in this case is P1. Now, another extension wire of the same material and the same length is used for connecting a computer in parallel to the same supply. The power dissipation in this case is P2. What is the value of P2:P1?

Explain as simple as possible.
Arnav Vivek Sen asked a question
Subject: Physics, asked on on 7/5/16
Which of the following - a voltmeteror ammeter - has more resistance and why ?
Harshil asked a question
Subject: Physics, asked on on 24/7/17
​I've heard that resistors are used to decrease current to a particular appliance, such as in the regulator of a fan. However, I've also heard that the total current in a circuit is always the same- in other words, all the current leaving the positive terminal of the battery reaches as it is to the negative terminal. How can this be? The two statements are contrary. How can the total current be the same if a resistor is reducing current at some point in the circuit?
Samartha Maheshwari asked a question
Subject: Physics, asked on on 28/4/17
1.as you mentioned in the lecture, that quantisation of charges means the conservation of charges. but how the charges are conserved in that. what is the significance of quantisation?

2. if the q has the positive value then would it be equal to n.

3.
Shaurya Sirohi asked a question
Subject: Physics, asked on on 30/4/17
what is derivation of ohm's law?
Somesh Chakrabarty asked a question
Subject: Physics, asked on on 12/4/19
I cannot attend today's live electricity class for 10. Would you please help me.
Charulatha asked a question
Subject: Physics, asked on on 10/4/17
sir pls xpalincharging by induction once again sir
Bhavya Goswami asked a question
Subject: Physics, asked on on 24/5/16
Does the potential difference provided by a battery increase with t;s size?
Shiva asked a question
Subject: Physics, asked on on 10/5/17
How can we use conventional current if protons cant move freely from their atioms?
Ms Eccentric asked a question
Subject: Physics, asked on on 14/5/17
In a parallel combination, is equivalent resistant and the total current same ?
Rounabh Sahu asked a question
Subject: Physics, asked on on 3/5/16

What are the works of semi -conductors and resistors in electric circuits?
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