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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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