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Eshita Kapoor
Subject: Physics
, asked on 16/9/19
Why does electrons flowed from uncharged conductor to charged conductor ???Does uncharged conductor have more electrons than charged conductor???
Answer
1
Bhupendra
Subject: Physics
, asked on 10/10/18
How is resistivity of a material related to the use of that material?
Answer
2
Shelly Gadale
Subject: Physics
, asked on 4/10/19
Why are magnets with concave shaped poles used in DC motor?What happens if magnets with flat poles are used in it?
Answer
1
Harsh
Subject: Physics
, asked on 15/1/19
Question no 2
Answer
1
Vikas
Subject: Physics
, asked on 7/6/18
Pls ans following urgently:
Q.19. In a circuit given below, find:
(i) Total resistance of the circuit,
(ii) Total current flowing in the circuit, and
(iii) The potential difference across
R
1
Answer
1
Legend Vishal
Subject: Physics
, asked on 27/1/18
Q. If a glass rod is rubbed with silk cloth, the glass rod acquires a positive charge of 12.8 C. Calculate number of electrons transferred. Which way these electrons move. Charge on electron = 1.6 x
10
-
19
C.
Q. What current flows in a resistance of 2kohm when
(i) a p.d. of 9 V and
(ii) a p.d of 6 mV is applied one by one?
Q. What do you mean by electric potential. Explain it by taking the analogy to liquid flow and heat flow.
Q. A current of 5 mA flows through
C
u
S
O
4
solution for 40s. How many Cu' ' ions will deposit on cathode of the apparatus?
Answer
1
Daksh Sripada
Subject: Physics
, asked on 21/12/17
A current of 1.5 amp flows through a conductor for 2 s.what amount of charge passes through the conducor
Answer
1
Swagata Bora
Subject: Physics
, asked on 12/7/20
make an assignment- drawing and recognising forms of important countours viz.valleys, ridges, types of slopes ,conical hill, plateau escarpment and sea Cliff
Answer
7
Daksh Sripada
Subject: Physics
, asked on 21/12/17
A conductor of length 85 cm has resistance of 3.75 ohm.calculate the resistance of a similar conducor of length 540 cm.
Answer
1
Harsh
Subject: Physics
, asked on 15/1/19
Please answer question 1
Answer
2
Sita
Subject: Physics
, asked on 15/8/18
Can u solve any 5 problems
Answer
2
Legend Vishal
Subject: Physics
, asked on 7/1/18
Write formula for electric current in terms of number of free electron n, change on e and the time of flow of current t.
Answer
4
Vikash (tutor)
Subject: Physics
, asked on 29/5/18
Ans the following urgently:
Q. Two lamps one rated 40 wan at 220 volt and other 60 watt 800 volt are connected in parallel to the Electric Supply at 220 volt.
(a) Draw a circuit diagram to show the connections
(b) Calculate the current drawn from the Electric Supply
(c) Calculate the total energy consumed by the two lamps together when they operate for 1hour.
ANS . b(0.45A) C (356.4 K3)
Answer
2
Jack .
Subject: Physics
, asked on 11/6/18
Who discovered the magnetic effect of electric current
Answer
10
Legend Vishal
Subject: Physics
, asked on 11/1/18
Please solve the problem
Q). Why do we see the lightning in sky first and hear its thunder there after? A man starts a stop watch no sooner he sees the lighting in the clouds and stops the watch when he hears the thunder. If the time gap between the two events is 1.8 seconds find the height of the clouds. Velocity of sound = 340
m
s
-
1
.
[612 m]
Answer
2
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What are you looking for?
Q.19. In a circuit given below, find:
(i) Total resistance of the circuit,
(ii) Total current flowing in the circuit, and
(iii) The potential difference across
Q. If a glass rod is rubbed with silk cloth, the glass rod acquires a positive charge of 12.8 C. Calculate number of electrons transferred. Which way these electrons move. Charge on electron = 1.6 x C.
Q. What current flows in a resistance of 2kohm when
(i) a p.d. of 9 V and
(ii) a p.d of 6 mV is applied one by one?
Q. What do you mean by electric potential. Explain it by taking the analogy to liquid flow and heat flow.
Q. A current of 5 mA flows through solution for 40s. How many Cu' ' ions will deposit on cathode of the apparatus?
Q. Two lamps one rated 40 wan at 220 volt and other 60 watt 800 volt are connected in parallel to the Electric Supply at 220 volt.
(a) Draw a circuit diagram to show the connections
(b) Calculate the current drawn from the Electric Supply
(c) Calculate the total energy consumed by the two lamps together when they operate for 1hour.
ANS . b(0.45A) C (356.4 K3)
Q). Why do we see the lightning in sky first and hear its thunder there after? A man starts a stop watch no sooner he sees the lighting in the clouds and stops the watch when he hears the thunder. If the time gap between the two events is 1.8 seconds find the height of the clouds. Velocity of sound = 340 .
[612 m]