Question:
The circuit shown in the figure contains two diodes each with a forward resistance of 50 \(\Omega\) and with infinite backward resistance. If the battery voltage is 6 V, the current through the 100 \(\Omega\) resistance (in ampere) is
The circuit shown in the figure contains two diodes each with a forward resistance of 50 \(\Omega\) and with infinite backward resistance. If the battery voltage is 6 V, the current through the 100 \(\Omega\) resistance (in ampere) is
Updated On: Aug 31, 2023
- zero
- 0.02
- 0.03
- 0.036
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The Correct Option is B
Solution and Explanation
The correct answer is B:0.02
In the circuit, diode \(D_1\) in forward biased, while \(D_2\) is reverse
biased. Therefore, current \(i\) (through \(D_1\) and 100 \(\Omega\)
resistance) will be
\(i = \frac {6}{50 + 100 + 150} = 0.02A\)
Here 50 \(\Omega\) is the resistance of \(D_1\) in forward biasing.
In the circuit, diode \(D_1\) in forward biased, while \(D_2\) is reverse
biased. Therefore, current \(i\) (through \(D_1\) and 100 \(\Omega\)
resistance) will be
\(i = \frac {6}{50 + 100 + 150} = 0.02A\)
Here 50 \(\Omega\) is the resistance of \(D_1\) in forward biasing.
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Concepts Used:
P-n Junction
A P-N junction is an interface or a boundary between two semiconductor material types, namely the p-type and the n-type, inside a semiconductor.
Biasing conditions for the p-n Junction Diode:
in p-n junction diode two operating regions are there:
- P-type
- N-type
There are three biasing conditions for p-n junction diode are as follows:
- Zero bias: When there is no external voltage applied to the p-n junction diode.
- Forward bias: P-type is connected to positive terminal of the voltage potential while n-type is connected to the negative terminal.
- Reverse bias: P-type is connected to negative terminal of the voltage potential while n-type is connected to the positive terminal.