Question:
A p-n junction diode is connected to a battery of emf 5.7 V in series with a resistor 5k \( \Omega \) such that it is forward biased. If the barrier potential of the diode is 0.7 V, neglecting the diode resistance, the current in the circuit is
A p-n junction diode is connected to a battery of emf 5.7 V in series with a resistor 5k \( \Omega \) such that it is forward biased. If the barrier potential of the diode is 0.7 V, neglecting the diode resistance, the current in the circuit is
Updated On: Jan 14, 2026
- 1.14 mA
- 1 mA
- 1 A
- 1.14 A
Show Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Using Ohm's law, the current in the circuit is:
\(\ \ I = \frac{V - V_b}{R} = \frac{5.7 - 0.7}{5 \times 10^3} = 1 \text{mA}\)
Was this answer helpful?
0
0
Top KCET Physics Questions
- The magnetic Lorentz force experienced by a charge q, entering a magnetic field B with a velocity v is
- ABCD is a square loop made of an uniform conducting wire. The current enters the loop at A and leaves at D. The magnetic field is
- A milliammeter of range 10 mA has a coil of resistance $1\Omega$. To use it as a voltmeter of range 10 V, the resistance that must be connected in series with it is
- The magnetic fields at two points on the axis of a circular coil at distance of 0.05 m and 0.2 m from the centre are in the ratio 8 :1 . The radius of the coil is
- The relative permeability is represented by $\mu_r$ and the susceptibility by $\varkappa$ for a magnetic substance. Then for a paramagnetic substance
View More Questions
Top KCET P-N Junction Questions
Top KCET Questions
- Which of the following is not true for oxidation?
- If $a, b$ and $c \in N$ which one of the following is not true ?
- When $50\, cm ^{3}$ of $0.2\, N$ $H_{2} SO _{4}$ is mixed with $50 cm ^{3}$ of $1 N\, KOH$, the heat liberated is :
- If $a | (b + c)$ and $a| (b-c)$ where $a,b,c \in \, N $ then
- Which of the following is NOT a pair of functional isomers?
View More Questions