A coil Q is connected to low voltage bulb B and placed near another coil P as showns in Fig. Give reasons to explain the following observation : (a) The bulb B lights (b) Bulb gets dimmer if coil Q is moved toward left.

A coil Q is connected to low voltage bulb B and placed near another coil P as shown in the fiugre. Give reasons to explain the following observations : (a) The bulb 'B' lights. (ii) Bulb gets diameter if the coil Q is moved towards left.

A coil Q is connected to low voltage bulb B and placed near another coil P as shown in the fiugre. Give reasons to explain the following observations : (a) The bulb 'B' lights. (ii) Bulb gets diameter if the coil Q is moved towards left.

In Fig. a coil B is connected to a low voltage bulb L and placed parallel to another coil A, as shown. Explain the following observations : (i) bulb lights (ii) gets dimmer if the coil B is moved upwards.

Coil A is connected to an ac source through a switch S. Coil B, kept close to A, is connected to a low voltage bulb (L). Explain the following observations. (i) When S is closed, the bulb lights up. (ii) With S closed if B is moved away from A, the bulb gets dimmer. (iii) With S closed, if a copper plate C is inserted between the coils, the bulb gets dimmer.

Paheli connected two bulbs to a cell as shown in Fig. 12.8. She found that filament of bulb B is broken. Will the bulb A glow in this circuit? Give reason.

A coil A is connected to a voltmeter V and the other coil B to an alterniting current sourecs, Fig. If a large copper sheet is placed between the two coils, how does the induced emf in coil A change due to current in coil B ?

Answer the following question: A student connected two bulbs in two different combinations as shown in figure. A and B. Observe the figure and answer the following questions: Name the type of combination of the bulbs in figure B.