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AIIMS 2019 Physics Current Electricity Revision Quiz 2

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Question 1

What will be the potential difference between the two ends of 3 m long axle of a car if, the car is moving due north at 15 m/s at a place where the vertical component of the earth’s magnetic field is 45μT?

Question 2

What will be the direction of induced current in the loop, if the current from A to B in the straight wire is decreasing?

Question 3

Will emf be induced in a circular loop of radius r and number of turns n, if it is kept in a uniform magnetic field B (vertical direction) and is rotated with constant angular velocity ω about an axis passing through the centre and perpendicular to the plane of the loop?

Question 4

What will be the direction of the current induced in planar irregular shaped loop abcd, when it is pulled out from a region of magnetic field with constant velocity?

Question 5

The figure shows a logic circuit with two inputs A and B and the output C. The voltage wave forms across A, B and C are as given. The logic circuit gate is

Question 6

In producing chlorine through electrolysis 100 W power at 125 V is being consumed. How much chlorine per min is liberated? ECE of chlorine is 0.367×10^-6 kg/C:

Question 7

A conducting square frame of side 'a' and a long straight wire carrying current I are located in the same plane as shown in the figure. The frame moves to the right with a constant velocity 'v'. The emf induced in the frame will be proportional to

Question 8

Which of the following combinations should be selected for better tuning of an L-C-R circuit used for communication?

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