For each of the following separate cases, state whether the induced electric cur
ID: 1393083 • Letter: F
Question
For each of the following separate cases, state whether the induced electric current in the copper loop will be up the front of the loop, down the front of the loop, or zero. Explain your reasoning.
a. The power supply is held at a steady value of 3 volts.
b. The power supply is steadily decreased from 3 volt to 0 volts.
c. The power supply is held at a steady value of 0 volts.
d. The power supply is steadily increased from 0 volts to 3 volts.
An electromagnet is created by wrapping an iron nail with wire. The two ends of the wire are connected to the positive and negative terminals of a power supply. A copper loop is held near one end of the nail. iron nail to neg.loop to positve erminal of power supplyterminalExplanation / Answer
lenz's law states that the induced current will produced a field such that it opposes the change in the applied field.
a. The power supply is held at a steady value of 3 volts.
as the field is not changing , there is NoZero() induced current.
b. The power supply is steadily decreased from 3 volt to 0 volts.
as the field is decreasing , the induced field will be in direction of aplied field.
the current will up the front of the loop.
c. The power supply is held at a steady value of 0 volts.
as the field is not changing , there is NoZero() induced current.
d. The power supply is steadily increased from 0 volts to 3 volts.
as the field is increasing , the induced field will be in direction oposite of aplied field.
the current will up the down of the loop.
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