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12. To increase the current in a series RL circuit, the frequency ________.
(a) should be increased
(b) should be decreased
(c) should be constant
(d) cannot be determined without values
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- 5555555555 2. When the frequency of the voltage applied to a series RL circuit is decreased, the impedance ________. (a) decreases (b) increases (c) does not change (d) cannot be determined without values
- 5555555555 3. If the frequency is halved and the resistance is doubled, the impedance of a series RL circuit ________. (a) doubles (b) halves (c) remains constant (d) cannot be determined without values
- 5555555555 4. When the resistor voltage in a series RL circuit becomes less than the inductor voltage, the phase angle ________. (a) increases (b) decreases (c) is not affected (d) cannot be determined