The circuit has two oppositely connect ideal diodes in parallel. What is the current following in the circuit?
1.33 A
1.71 A
2.00 A
2.31 A
C.
2.00 A
D1 is reverse biased therefore it will act like an open circuit.
A working transistor with its three legs marked P, Q and R are tested using a multimeter. No conduction is found between P and Q. By connecting the common (negative) terminal of the multimeter to R and the other (positive) terminal of P or Q, some resistance is seen on the multimeter. Which of the following is true for the transistor?
In the circuit below, A and B represent two inputs and C represents the output. The circuit represents
If in a p-n junction diode, a square input signal of 10V is applied as shown Then the output signal across RL will be 
Carbon, silicon and germanium have four valence electrons each. At room temperature which one of the following statements is most appropriate?
A thermocouple is made from two metals, Antimony and Bismuth. If one junction of the couple is kept hot and the other is kept cold then, an electric current will
A solid which is transparent to visible light and whose conductivity increases with temperature is formed by
In a common base mode of a transistor, t collector current is 5.488 mA for an emit current of 5.60 mA. The value of the base current amplification factor (β) will be
The anode voltage of a photocell is kept fixed. The wavelength λ of the light falling on the cathode is gradually changed. The plate current I of the photocell varies as follows
Mock Test Series
