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10 May, 14:20

1. A circuit with a 6 v battery is connected to a light bulb that has a resistance of. 5 Ohms. How much current Is flowing through the light bulb when it is turned on?

2. A car has a 12 v battery. When someone starts the car 200 amps of current move through the cars starter. What is the resistance of the cars starter?

3. A toy electric car uses 2 amps of current when the car is running. If the resistance of the car's motor is 3 ohms, what is the voltage of the battery in the car?

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  1. 10 May, 15:46
    0
    I = 12 ampere

    R = 0.06 ohm

    V = 6 Volt

    Explanation:

    1)

    Given that,

    voltage of battery that is connected to a light bulb = 6v

    resistance in the circuit = 0.5 ohms

    current Is flowing through the light bulb

    I = V / R

    I = 6/0.5

    I = 12 ampere

    2)

    Given that,

    voltage of car battery = 12v

    amount of current that moves through the car starter = 200amps

    resistance of the cars starter

    R = V / I

    R = 12 / 200

    R = 0.06 ohm

    3)

    Given that,

    current used by the toy electric car = 2 amps

    resistance of the car's motor = 3 ohms

    voltage of the battery in the car

    V = I R

    V = 2 (3)

    V = 6 Volt
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