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Ohm's Law

Q1:
If the voltage in the given circuit was cut in half, what would the current equal?

A 10 mA

B 30 mA

C 60 mA

D 90 mA

ANS:B - 30 mA

According to formula,

V = I.R
Then I = v/r.

Write value in formula.
I = 18/300 = 0.06A.
But half in circuit,
0.06/2 = 0.03A,
= 30mA.



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