Subject: Physics, asked on 1/5/18

## Plz answer step by step Q.63. The reading of the ammeter for a silicon diode in the given circuit is : (1) 15 mA (2) 11.5 mA (3) 13.5 mA (4) 0

Subject: Physics, asked on 1/5/18

## Explain question 43. Ans(4) ​Q43. In the given circuit Rc =3 k Ω. VCE = 6 V and VBE = 0.7 V. If $\mathrm{\beta }$ = 50, the base resistor RB will be (1) 7.5 × 104 Ω                               (2) 5 × 104 Ω           (3) 4.5 × 105 Ω                               (4) 1.125 × 105Ω

Subject: Physics, asked on 27/4/18

## How many AND gates are required to form NAND gate?

Subject: Physics, asked on 26/4/18

## Please explain how to solve the following question Q.37. Figure shows the practical realisation of a logic gate. Identify the logic gate (1) NAND (2) NOR (3) XOR (4) XNOR Sol. Answer (1)

Subject: Physics, asked on 26/4/18

## How do we identify if the grounded portion is collector or emitter?: 25. The given transistor amplifier connection is. (1) Common base connection            (2) Common emitter connection. (3) Common collector connection.      (4) All of these

Subject: Physics, asked on 26/4/18

## Please explain how this is full wave rectified Q.19. In the diagram shown below, the input is across the terminals A and C and the output is across B and D. Then the output is (1) Zero (2) Same as input (3) Full wave rectified (4) Half wave rectified

Subject: Physics, asked on 18/4/18

## Online 2018 mains Logic gate question Q.18. Truth table for the following digital circuit will be : 1. 2. 3. 4.

Subject: Physics, asked on 12/4/18

## Q.45. In the circuit below, A and B represents two inputs and C represents the output. The circuit represents :- (1) AND gate (2) NOR gate (3) OR gate (4) NAND gate

Subject: Physics, asked on 2/4/18

## Q.28. The forward biased diode connection is

Subject: Physics, asked on 31/3/18

## Solve this plzzz..

Subject: Physics, asked on 31/3/18

## Solve this plzzz.. Q3. A Zener diode is specified having a breakdown voltage of 9.1 V with a maximum power dissipation of 364 mW. What is the maximum current that the diode can handle?

Subject: Physics, asked on 31/3/18

## In given circuit determine I, I1 and I2

Subject: Physics, asked on 31/3/18

## (a) Calculate the value of V0 and I if the Si diode and the Ge diode start conducting at 0.7 V and 0.3 V respectively, In the given circuit. (b) If the Ge diode connection be reversed, What will be the new values of V0 and I ?

Subject: Physics, asked on 31/3/18

## Solve this plzzz.. Q. Suppose a pure Si crystal has 5 × 1028 atoms m–3. It is doped by 1 ppm concentration of pentavalent As. Calculate the number of electrons and hole. (Given that ni = 1.5 × 1016 m–3.)

Subject: Physics, asked on 27/3/18

## Solve this.  Q.  What should be the value of unity gain frequency for a short circuit CE transistor with gain of 30 at  ​4 MHz and cut-off frequency of about 100 kHz?    40 MHz  80 MHz  120 MHz  150 MHz

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