Practice portal › Electromagnetic Induction › Lenz's Law

A coil is placed in a magnetic field B as shown below. A current is induced in the coil because B is

Asked in JEE Main 31st Aug 2nd Shift 2021 · Direction of the induced current

Figure: Direction of the induced current
Answer: (3) outward and decreasing with time

Step-by-step solution

The induced current in the figure runs clockwise, so by the right-hand rule it makes flux into the page inside the coil.

By Lenz's law it is opposing a loss of outward flux.

So B points outward and is decreasing with time.

Why the other options are wrong

More Lenz's Law questionsAll Lenz's Law questions →

Reading this solution needs no sign-in. You only sign in to practise against the clock and keep your progress.

Practise this with a timer