A bulb is rated 100 W-220 V. It is being used at 110 V supply. The power consumed by bulb is:

1. 100 W
2. half of 100 W
3. nearly 25 W
4. none of the above

Three bulbs A, B and C are connected as shown in the figure. What changes are seen in brightness of the bulbs if switch S is closed?

1. The brightness of bulb A decreases and that of C increases.
2. The brightness of bulb A increases but that of C decreases.
3. The brightness of both bulbs A and C decreases.
4. The brightness of both bulbs A and C remains the same.

Assertion (A): In series combination of electric bulbs, the bulb of lower power emits more light than that of the higher power.

Reason (R): The lower power bulb in series gets more current than the higher power bulb

1. both A and R are true and R is the correct explanation of A
2. both A and R are true and R is not the correct explanation of A
3. assertion is false but reason is true
4. assertion is true but reason is false

Assertion (A): In parallel combination of electrical appliances, total power consumption is equal to the sum of the power of individual appliances.

Reason (R): In parallel combination, the voltage across each appliance is the same.

1. both A and R are true and R is the correct explanation of A
2. both A and R are true and R is not the correct explanation of A
3. assertion is false but reason is true
4. assertion is true but reason is false