Which of the following statements is not correct in the case of light emitting diodes (LEDs)?A. It is a heavily doped p-n junction. B. It emits light only when it is forward-biased. C. It emits light only when it is reverse-biased. D. The energy of the light emitted is equal to or slightly less then the energy gap of the semiconductor used.Choose the correct answer from the options given below:
In the circuit shown below, V(t) is the sinusoidal voltage source, the voltage drop VAB(t) across the resistance R is
Transfer characteristics (output voltage \( V_o \) vs input voltage \( V_i \)) for a base biased transistor in CE configuration is as shown in the figure. For using transistor as a switch, it is used
A d.c. battery of V volts is connected to a series combination of a resistor R and an ideal diode D as shown in the figure below. The potential difference across R will be
