1. (a) A group of resistors connected in parallel have the same

(i) Current in them,

(ii) Potential difference across them, or

(iii) Neither of the above.

(b) A group of resistors connected in series have the same

(i) Current in them,

(ii) Potential difference across them, or

(iii) Neither of the above. Justify your answers by considering a circuit consisting of a 3.0-Ω resistor and a 5.0- Ω resistor connected across a 12-V battery.

2. Two sets of Christmas tree lights are available. For set A, when one bulb is removed, the remaining bulbs remain illuminated. For set B, when one bulb is removed, the remaining bulbs do not operate. Explain the difference in wiring for the two sets.

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Switch Battery