1) What happens to the magnitude of the magnetic field inside a long solenoid if the current is doubled?
A: It becomes four times larger.
B: It becomes twice as large.
C: It is unchanged.
D: It becomes one-half as large.
E: It becomes one-fourth as large.
A: It becomes four times larger.
B: It becomes twice as large.
C: It is unchanged.
D: It becomes one-half as large.
E: It becomes one-fourth as large.
举一反三
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