The resistance of a 30-W, 12-V light bulb is
A) 0.21 ohms.
B) 0.4 ohms.
C) 2.5 ohms.
D) 4.8 ohms.
Correct Answer:
Verified
Q16: Atoms and molecules are normally
A) electrically neutral.
B)
Q17: The volt is the unit of electric
A)
Q18: Which of the following statements is not
Q19: The nucleus of an atom
A) contains most
Q20: Superconductivity occurs in certain substances
A) only at
Q22: A current-carrying wire is in a magnetic
Q23: A magnet does not exert a force
Q24: The power rating of an electric motor
Q25: When a magnetized iron bar is strongly
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