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## how would you detect the presence of magnetic field on an unknown planet

Asked by vinodjoshi112233 10th December 2017 8:16 PM

## Q.  A Coil of insulated copper wire is connected to a galvanometer.  What will happen if a bar magnet is : a) Pushed into the  coil.  b) Withdrawn from the coil.  c) Held stationary near the coil.  Draw diagarm to represent each situation and explain the deflection in the galvanometer.

Asked by pdcavita 20th December 2017 5:45 PM

## q

Asked by Arushi Juyal 14th January 2018 2:18 AM

## Q.

Asked by Arushi Juyal 14th January 2018 2:21 AM

## Q

Asked by Arushi Juyal 14th January 2018 2:29 AM

## Q

Asked by Arushi Juyal 14th January 2018 2:51 AM

## a bar magnet m is dropped vertically through the coil C.Draw the of the graph between emf induced in the coil vs time,Why is the negative peak longer than the positive peak?

Asked by surbhimaindola49 17th February 2018 8:11 AM

## the magnetic flux through a coil having 100 turns decreases from 5 milli weber to zero in 5 second. Calculate the e.m.f. induced in the coil.

Asked by bdroy_2014 20th February 2018 11:23 PM

## In this question I am not able to understand that why the area of circle is not constant whereas the area of rectangle is constant.

Asked by Balbir 2nd March 2018 11:02 PM

## a metal disc of radius 200cm is rotated at a constatnt angular speed of 60 rads¯¹ in a plane at right angle to an external uniform magnetic field of magmetics induction 0.05 T.find the emf induced between the centre and a point on the rim.

Asked by sbtech357 27th July 2018 9:31 AM

## A RECTANGULAR AND CIRCULAR LOOP ARE MOVING OUTOF THE UNIFORM MAGNETIC FIELD REGION WITH UNIFORM VELOCITY. IN WHICH LOOP WILL THE INDUCED EMF BE MORE?

Asked by afreensyed13 1st August 2018 5:49 PM

## Ques 15

Asked by rbhatt16 23rd August 2018 6:25 PM

## A square of side 0.5 m has movable sides. It is placed such that it's plane is perpendicular to the field of induction 0.2 T . If all the sides are allowed to move with a speed of 0.1 m/s for 4 s outwards , average induced emf is

Asked by Deepak 31st August 2018 9:48 PM

## A square loop of side 'a' is placed in the same plane as a long straight wire carrying a current i . The nearer side of loop is at a distance 'a' from the wire . The loop is moved away from the wire with a constant velocity v . The induced emf in the loop is

Asked by Deepak 31st August 2018 9:53 PM

## A conducting circular loop is in perpendicular magnetic field of 0.01 T . If the radius of the loop starts shrinking at a uniform rate of 1 mm/s  , then the emf induced in the loop at the instant when it's radius is 10cm will be

Asked by Deepak 31st August 2018 9:58 PM

## A bar magnet is dropped so that it falls vertically through coil .the graph obtained for induced emf wiil be

Asked by ashutosharnold1998 18th September 2018 10:38 PM

## A coil has 1000 turns and 500cm^2 as its area. The plane of the coil is placed at right angles to a magnetic induction field of 2×10^-5 wb/m^2. The coil is rotated through 180° in 0.2 seconds. Find the average emf induced in the coil.

Asked by acv27joy 17th December 2018 3:42 PM

## All

Asked by anuragharsh252000 21st December 2018 4:54 PM

## sir please solve and explain the solution

Asked by jaychandran1967 24th December 2018 9:58 AM