Problem Statement: EE Board October 1993A standard cell has an emf “E” of 1.2 volts. If the resistance “R” of the circuit is increasing at the rate of 0.03 ohm/sec, at what rate is the current “I” changing at the instant when the resistance is 6 ohms? Assume Ohm’s law E = IR.
- A. -0.002 amp/sec
- B. 0.004 amp/sec
- C. -0.001 amp/sec
- D. 0.003 amp/sec
The current changing at -0.001 amp/secSolution:
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