A, B, C are identical bulbs. How does the brightness of A and B change when the switch S is closed ?

A solenoid with an iron core and a bulb are connected to a d.c. source. How does the brightness of the bulb change, when the iron core is removed from the solenoid?

A solenoid with an iron core and a bulb are connected to a.d.c.source. How does the brightness of the bulb change, when the iron core is removed from the solenoid?

Figure shows three idenetical bulbs A,B and C connected to a battery of supply voltage V. When the switch S is closed, discuss the change is . (a) The illumination of the three bulbs (b) The power dissipated in the circuit .

If X, Y and Z in figure are identical lamps, which of the following changes to the brightnesses of the lamps occur when switch S is closed?

If X, Y and Z in figure are identical lamps, which of the following changes to the brightness of the lamps occur when switch S is closed?

If X, Y and Z in figure are identical lamps, which of the following changes to the brightness of the lamps occur when switch 'S' is closed?

If X, Y and Z in figure are identical lamps, which of the following changes to the brightness of the lamps occur when switch S is closed?