If the current through a resistor is halved: A) only potential difference across

Question

If the current through a resistor is halved: A) only potential difference across the resistor is doubled B) only potential difference across the resistor is halved C) only the resistance is doubled D) only the resistance is halved E) both the potential and resistance arc doubled In the diagram R_1 > R_2 > R_3. Rank the three resistors from least to greatest by the current through them. A) 1, 2, 3 B) 3, 2, 1 C) 1, 3, 2 D) 3, 1, 2 E) All are the same Answer ___ When resistors 1 and 2 are connected in series, the equivalent resistance is 20 Ohm. When they a connected in parallel, the equivalent resistance is 3.2 Ohm. Answer ___ The resistance of the two resisters are: a) 10 Ohm and 20 Ohm b) 12 Ohm and 8 Ohm c) 8 Ohm and 17 Ohm d) 16 Ohm and 4 Ohm e) 15 Ohm and 10 Ohm Answer ___

Explanation / Answer

8) according to ohms law the equation is V = IR

given current is halfed this implies V = I/2 * R = V/2

this implies potential difference is halfed

option B is correct

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