A Long Solenoid Has a Radius of 4

question 30

Multiple Choice

A long solenoid has a radius of 4.0 cm and has 800 turns/m.If the current in the solenoid is increasing at the rate of 3.0 A/s,what is the magnitude of the induced electric field at a point 2.2 cm from the axis of the solenoid?

• A)3.3 *10 ^{- 5} V/m
• B)3.6 * 10 ^{- 5} V/m
• C)3.9 *10 ^{- 5} V/m
• D)4.2 *10 ^{- 5} V/m
• E)6.0 *10 ^{- 5} V/m

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