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Three identical bulbs are connected in parallel to a battery of 6 V. If the current in the circuit is 0.6 A, the power dissipated by the battery is:
Question

Three identical bulbs are connected in parallel to a battery of 6 V. If the current in the circuit is 0.6 A, the power dissipated by the battery is:

A.

0.1 W

B.

3.6W

C.

5 W

D.

10W

Correct option is B

The correct option is (B3.6W

Information booster:

To calculate the power dissipated by the battery, we use the formula for electrical power:

P=V×IP = V \times IP=V×I

where:

  • PPP is the power,
  • VVV is the voltage of the battery,
  • III is the total current in the circuit.

Given:

  • V=6VV = 6 \, \text{V}V=6V,
  • I=0.6AI = 0.6 \, \text{A}I=0.6A.

Solution: 

P=6V×0.6A=3.6W.P = 6 \, \text{V} \times 0.6 \, \text{A} = 3.6 \, \text{W}.P=6V×0.6A=3.6W.

Answer:

The power dissipated by the battery is 3.6 watts (W).

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