Suppose that an ammeter inserted in series in a toaster circuit shows that the current is 5.0 amps when the toaster is plugged into a 120-volt circuit. Show that the energy dissipated by the toaster in 40 seconds is 24,000 joules.
The energy dissipated by toaster.
Answer to Problem 71A
The energy dissipated = 24000 J.
Explanation of Solution
Given data:
Current passing through toaster ( i ) = 5.0 amp.
Voltage provided ( V ) = 120 V.
Time for which current is flown in circuit ( t ) = 40 s.
Formula used:
The energy dissipated from toaster is,
Here, V is the voltage, i is the careen and t is the elapsed time.
Calculation:
The energy dissipated:
Conclusion:
The energy dissipated = 24000 J.
Chapter 34 Solutions
Conceptual Physics: The High School Physics Program
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