In the following electrical circuit, the reading in the milliammeter is (Take knee voltage of silicon diode = 0.7 V)

Step-by-step solution

In the given circuit, the p-side of the silicon diode is connected to the positive terminal of the battery, so it is forward-biased. The effective voltage across the resistor is the battery voltage minus the knee voltage of the diode: V_ eff = V - V_k V_ eff = 5 - 0.7 = 4.3 V The current in the circuit is given by Ohm's law: I = V_ eff R I = 4.3 200 A I = 0.0215 A Converting to milliamperes: I = 21.5 mA Answer: 21.5 mA