A metallic ring, connected to a rod, oscillates freely like a pendulum. If now a magnetic field is applied in horizontal direction, so that the pendulum now swings through the field, the pendulum will

A current carrying solenoid is approaching a conducting loop as shown in the figure. The direction of induced current as observed by an observer on the other side of the loop will be

An aluminum ring $B$ faces an electromagnet $A$. The current $I$ through $A$ can be altered. Choose the correct statement.

A conducting ring is placed around the core of an electromagnet as shown in the figure. When key $K$ is pressed, the ring

The north and south poles of two identical magnets approach a coil, containing a condenser, with equal speeds from opposite sides. Then

The graph shows the variation in magnetic flux $\varphi \left(t\right)$ with time through a coil. Which of the statements given below is not correct?

A horizontal loop $abcd$ is moved across the pole pieces of a magnet as shown in the figure, with a constant speed $v$. When the edge $ab$ of the loop enters the pole pieces at time $t=0$ sec, which one of the following graphs represents correctly the induced emf in the coil?

Two circular coils $A$ and $B$ are facing each other as shown in figure. The current $i$ through $A$ can be altered. Choose the correct statement.

The graph gives the magnitude $B\left(t\right)$ of a uniform magnetic field that exists throughout a conducting loop, perpendicular to the plane of the loop. Rank the five regions of the graph according to the magnitude of the emf induced in the loop.