By what factor is the self-inductance of a solenoid changed if only its cross-sectional area, A, is doubled?

a. 1/2
c. 2
b. 4
d. 8


C

Physics & Space Science

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What do we mean by the observable universe?

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Two spaceships are approaching one another, one with speed v1 and the other with speed v2 . Neither speed is 0 . Their speed of approach, according to Newtonian mechanics, is v1 + v2 . Special relativity tells us that the speed of approach

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Physics & Space Science

How is the energy stored in a current-carrying inductor related to its self-inductance, L?

a. directly proportional to L1/2 c. inversely proportional to L b. directly proportional to L d. directly proportional to L2

Physics & Space Science