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Calculate the resistance of the lamp.

Physics

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Answer

11.3 Ω\text{11.3 } \Omega

3.18 W\text{3.18 W}

Step-by-step solution

2 steps
  1. Calculate the resistance of the lamp.

    The voltage (VV) across the lamp is 6.0 V6.0 \, \text{V} and the current (II) through it is 0.53 A0.53 \, \text{A}.
    Using Ohm's Law, R=VIR = \frac{V}{I}:

    R=6.0 V0.53 AR = \frac{6.0 \, \text{V}}{0.53 \, \text{A}} R≈11.32075 ΩR \approx 11.32075 \, \Omega

    Rounding to three significant figures:

    R=11.3 ΩR = 11.3 \, \Omega

    The resistance is 11.3 Ω\boxed{\text{11.3 } \Omega}.

  2. Calculate the electrical power transferred in the lamp.

    The voltage (VV) is 6.0 V6.0 \, \text{V} and the current (II) is 0.53 A0.53 \, \text{A}.
    Using the formula for power, P=VIP = VI:

    P=(6.0 V)×(0.53 A)P = (6.0 \, \text{V}) \times (0.53 \, \text{A}) P=3.18 WP = 3.18 \, \text{W}

    The electrical power transferred is 3.18 W\boxed{\text{3.18 W}}.

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