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If the resistance of a component is kept constant and the voltage across it is doubled, the current through it will
Abecome half
Bstay the same
Cbecome one-fourth
Ddouble
Answer & Solution
Correct answer: D. double
1. Ohm's law: $I = V/R$ with R constant, so $I \propto V$.
2. Doubling V doubles I.
3. So the current becomes twice its original value.
_Source: Karnataka SSLC (KSEEB) Class 10 Science, Ch12 'Electricity', §12.3_
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