
A magnetic field of uniformly increasing magnitude is directed into the plane of the page as shown. A conducting loop of wire is on the plane of the page.

Which is correct about the direction and magnitude of the induced current in the wire respectively?



Important Questions on Electromagnetic Induction (HL)
A loop of the wire contains two identical light bulbs, and . The region in the loop contains a changing magnetic field whose direction is normal to the plane of the page. Both light bulbs are lit. A copper wire is placed across the loop as shown in the diagram.
What will be the effect of this wire on the brightness of the light bulbs?

A conducting loop of wire is in a region of magnetic field directed into the plane of the page. The loop is rotated about axes I, II and III.
In which case or cases will there be an induced current in the loop.

The graph shows the variation with the time of the power dissipated in a resistor of resistance In an ac circuit.
What is the rms value of the voltage across the resistor (in ) and the period of the current (in s)?



In the circuit shows a capacitor that is initially uncharged is being charged by a battery.
Which of the following is a correct graph of the variation of the potential difference across the plates with charge on one of the capacitor plates?

What will the initial current be in the below the instant the switch is closed, and what will it be eventually a long time after the switch is closed? (answer in order)

The graph shows the variation with time t of the current I for a discharging capacitor.
What is the time constant of this system?(in sec)
