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12. Two coils having resistances of 5 2 and 8 2 respect- ively are connected across a battery having an e.m.f. of 6 V and an internal resistance of 1.5 2. Calculate: (a) the terminal voltage and (b) the energy in joules dissipated in the 5 2 coil if the current remains constant for 4 min.

12. Two coils having resistances of 5 2 and 8 2 respect- ively are connected across a battery having an e.m.f. of 6 V and an internal resistance of 1.5 2. Calculate: (a) the terminal voltage and (b) the energy in joules dissipated in the 5 2 coil if the current remains constant for 4 min.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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12. Two coils having resistances of 5 Q and 8 N respect- ively are connected across a battery having an e.m.f. of 6 V and an internal resistance of 1.5 Q. Calculate: (a) the terminal voltage and (b) the energy in joules dissipated in the 5 Q coil if the current remains constant for 4 min. 13. A coil of 12 Q resistance is in parallel with a coil of 20 Q resistance. This combination is connected in series with a third coil of 8 Q resistance. If the whole circuit is connected across a battery having an e.m.f. of 30 V and an internal resistance of 2 Q, calculate (a) the terminal voltage of the battery and (b) the power in the 12 Q coil.
Transcribed Image Text:12. Two coils having resistances of 5 Q and 8 N respect- ively are connected across a battery having an e.m.f. of 6 V and an internal resistance of 1.5 Q. Calculate: (a) the terminal voltage and (b) the energy in joules dissipated in the 5 Q coil if the current remains constant for 4 min. 13. A coil of 12 Q resistance is in parallel with a coil of 20 Q resistance. This combination is connected in series with a third coil of 8 Q resistance. If the whole circuit is connected across a battery having an e.m.f. of 30 V and an internal resistance of 2 Q, calculate (a) the terminal voltage of the battery and (b) the power in the 12 Q coil.
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