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Subject: Physics, asked on 6/4/19

please answer the question given in the picture below.

Subject: Physics, asked on 11/8/18

considering magnetic field along the axis of a circular loop of radius r at what distance from the centre of the loop is the field one tenth of its value at the centre

Subject: Physics, asked on 26/5/18

Describe an experiment to demonstrate the phenomenon of electromagnetic induction

Subject: Physics, asked on 6/8/19

A current-carrying conductor has 8×10^22 free electrons per metre length and their mean drift velocity is 8 ×10^-5ms^-1.If a magnetic field of 0.10T be applied perpendicular to the conductor ,then calculate 1)current in the conductor ,2)force on an electron and 3)force imposed per metre length of the conductor.

Subject: Physics, asked on 22/6/18

an electron of mass M and charge Q is travelling with speed V along a circular path of radius R at right angles to a uniform magnetic field B if speed of electron is doubled and magnetic field is halved then resulting path would have a radius of?

Subject: Physics, asked on 27/6/18

Find the value of magnetic field

Subject: Physics, asked on 18/7/18

Experts solve q no 6 with explanation and diagram

Subject: Physics, asked on 20/6/18

Find the equivalent resistance between a and b

Subject: Physics, asked on 4/7/18

How is current flowing even though the switch at X is kept open?

Subject: Physics, asked on 3/8/19

Can anyone please help me with question no 14

Subject: Physics, asked on 10/10/18

Why the poles of permanent magnet are "concave cylindrical" in case of a galvanometer?

A R
Subject: Physics, asked on 11/6/18

Q A particle of mass m and positive charge q moving with uniform velocity v enters a magnetic field B→ as shown . Find the radius of the circular arc it describes in magnetic field.Find the angle subtended by the arc at the centre.

 

A R
Subject: Physics, asked on 6/7/18

Please solve question no 35

Subject: Physics, asked on 17/7/18

Find magnetism magnitude

Subject: Physics, asked on 11/4/18

it is said that Galvanometer can act as both ammeter and voltmeter. but voltmeter has more resistance and ammeter has low resistance. so how can a resistance of galvanometer change so much?

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