Question

A and B are two devices. Both these devices have two terminals each. If the two terminals are connected directly by a wire, nothing happens but when the two terminals of device B are connected by a wire directly, it gets damaged quickly. When the two terminals of device B are connected to the two terminals of device A by copper wires then part of C device gets heated and glows to produce light. A circuit is constructed using connecting wires ,device A, B, switch and a box. The box consists of rings made of different materials like plastic, iron and copper. Answer the following questions.1a. What could be device A and device B? a. A: bulb, B: Cell b. A: switch, B: Cell b. A: bulb, B: resistor d. A: bulb, B: switch 1b. Name the part of C of device Aa. metal case b. tungsten filament c. glass case d. insulator 1c. In which device A or B, the two terminals are marked (+) and (-)? a. device A b. device B c. both A & B d. none of these


The person who answers this I will mark them as a brainliest.

Answer 1

Answer:

1 b

2 a

3 c

4 a

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