A circuit consists of N resistors, all of resistance R, connected as shown below. A potential difference V is applied to the circuit. The equivalent resistance of the circuit is
a.
.
b.
R.
c.
c
Physics & Space Science
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The electric field established by a battery in a dc circuit
A) increases via the inverse-square law. B) changes magnitude and direction with time. C) acts in one direction. D) is non-existent. E) none of the above
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An atom in an excited state contains more of what type of energy than the same atom in the ground state?
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A reasonable estimate for the mass of a typical new-born baby is
A) 1 kg. B) 3 kg. C) 10 kg. D) 20 kg.
Physics & Space Science