Q18 / 88 · NTA Abhyas (JEE Main) 2020 · Physics · Semiconductors

The circuit has two oppositely connect ideal diodes in parallel. What is the current flowing in the circuit?

A
$1.33 A$
B
$1.71 A$
Correct answer
C
$2.00 A$
D
$2.71 A$

Solution

Since diode

D_{1}

is reverse biased, therefore it will act as an open circuit.
The effective resistance of the circuit is

R = 4 + 2 = 6 Ω

.
Current in the circuit is

I = E / R = 12 / 6 =

2 A.

Hence, the correct answer is option: 'C'.

More Semiconductors Questions

In the following circuit, a voltmeter V is connected across a lamp L . What change would occur in voltmeter reading if the resistance R is r
If the resistivity of pure silicon is 3000 Ω m and the mobilities of electrons and holes are 0 . 12 m 2 V - 1 s - 1 and 0 . 045 m 2 V - 1 s
The current gain α of a transistor in common base mode is 0 . 995 . Its gain β in the common-emitter mode is
The electrical conductivity of a semiconductor increases when electromagnetic radiation of a wavelength shorter than 2480 nm is incident on
A working transistor with its three legs marked P, Q and R is tested using a multimeter. No conduction is found between P and Q. By connecti
A transistor oscillator is (i) An amplifier with positive feedback (ii) An amplifier with reduced gain (iii) The one in which DC supply ener