Current electricity questions | form six Physics

A coil of a wire has a resistance of 10.8Ω at 20°C and 14.1Ω at 100°C. Determine the
temperature coefficient of resistance and hence its resistance at 0°C.

Answer / Solution

UNSOLVED

State the function of each of the following devices:
(i) Digital circuit
(ii) Integrated Circuit

Answer / Solution

UNSOLVED

Identify three basic logic gates that make up all digital circuits.

Answer / Solution

UNSOLVED

Construct the truth table from the logic gates shown in Figure2.

Answer / Solution

UNSOLVED

Figure3 shows a circuit symbol of a logic gate and two input waveforms X and Y.

(i) What does the circuit symbol represent?
(ii) Sketch the output waveform Q.

Answer / Solution

UNSOLVED