Asked by erica
please check my answers.
when a lamp is plugged into a 120 V socket, each coulomb of charge that flows in the circuit is raised to a potential engergy of 120 joules?
which offers more resistance to water flow, a wide pipe or narrow pipe? I got wide as my answer.
Similarly which offers more resistance to the flow of charge, a thick wire or a thin wire? I got thin wire as my answer.
If the filliament resistance in an automobile headlamp is 3 ohms, how many amps does it draw when connected to a 12 volt battery? I got 36 watts?
when a lamp is plugged into a 120 V socket, each coulomb of charge that flows in the circuit is raised to a potential engergy of 120 joules?
which offers more resistance to water flow, a wide pipe or narrow pipe? I got wide as my answer.
Similarly which offers more resistance to the flow of charge, a thick wire or a thin wire? I got thin wire as my answer.
If the filliament resistance in an automobile headlamp is 3 ohms, how many amps does it draw when connected to a 12 volt battery? I got 36 watts?
Answers
Answered by
drwls
1. Correct
2. No to your pipe answer
3. They are asking for current (in amps), not power (in watts).
Use ohm's law.
2. No to your pipe answer
3. They are asking for current (in amps), not power (in watts).
Use ohm's law.
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