Junction Transistors (npn, pnp)
Semiconductor Electronics Material Devices and Simple Circuits

151054 A p-n junction in series with a resistance of \(5 \mathrm{k} \Omega\) is connected across a \(50 \mathrm{~V}\) DC source. If the forward bias resistance of the junction is \(50 \Omega\), the forward bias current is:

1 \(8.8 \mathrm{~mA}\)
2 \(1 \mathrm{~mA}\)
3 \(2 \mathrm{~mA}\)
4 \(20 \mathrm{~mA}\)
5 \(9.9 \mathrm{~mA}\)
Semiconductor Electronics Material Devices and Simple Circuits

151055 A transistor connected at common-emitter mode contains load resistance of \(5 \mathrm{k} \Omega\) and an input resistance of \(1 \mathrm{k} \Omega\). If the input peak voltage is \(5 \mathrm{mV}\) and the current gain is 50 , find the voltage gain:

1 250
2 500
3 125
4 50
5 75
Semiconductor Electronics Material Devices and Simple Circuits

151057 The current gain for a common emitter amplifier is 69 . If the emitter current is \(7 \mathrm{~mA}\), the base current is

1 \(0.1 \mathrm{~mA}\)
2 \(1 \mathrm{~mA}\)
3 \(0.2 \mathrm{~mA}\)
4 \(2 \mathrm{~mA}\)
Semiconductor Electronics Material Devices and Simple Circuits

151058 In a common base transistor circuit, the current gain is 0.98 . On changing the emitter current by \(5.00 \mathrm{~mA}\), the change in collector current is

1 \(0.196 \mathrm{~mA}\)
2 \(2.45 \mathrm{~mA}\)
3 \(4.9 \mathrm{~mA}\)
4 \(5.1 \mathrm{~mA}\)
Semiconductor Electronics Material Devices and Simple Circuits

151054 A p-n junction in series with a resistance of \(5 \mathrm{k} \Omega\) is connected across a \(50 \mathrm{~V}\) DC source. If the forward bias resistance of the junction is \(50 \Omega\), the forward bias current is:

1 \(8.8 \mathrm{~mA}\)
2 \(1 \mathrm{~mA}\)
3 \(2 \mathrm{~mA}\)
4 \(20 \mathrm{~mA}\)
5 \(9.9 \mathrm{~mA}\)
Semiconductor Electronics Material Devices and Simple Circuits

151055 A transistor connected at common-emitter mode contains load resistance of \(5 \mathrm{k} \Omega\) and an input resistance of \(1 \mathrm{k} \Omega\). If the input peak voltage is \(5 \mathrm{mV}\) and the current gain is 50 , find the voltage gain:

1 250
2 500
3 125
4 50
5 75
Semiconductor Electronics Material Devices and Simple Circuits

151057 The current gain for a common emitter amplifier is 69 . If the emitter current is \(7 \mathrm{~mA}\), the base current is

1 \(0.1 \mathrm{~mA}\)
2 \(1 \mathrm{~mA}\)
3 \(0.2 \mathrm{~mA}\)
4 \(2 \mathrm{~mA}\)
Semiconductor Electronics Material Devices and Simple Circuits

151058 In a common base transistor circuit, the current gain is 0.98 . On changing the emitter current by \(5.00 \mathrm{~mA}\), the change in collector current is

1 \(0.196 \mathrm{~mA}\)
2 \(2.45 \mathrm{~mA}\)
3 \(4.9 \mathrm{~mA}\)
4 \(5.1 \mathrm{~mA}\)
Semiconductor Electronics Material Devices and Simple Circuits

151054 A p-n junction in series with a resistance of \(5 \mathrm{k} \Omega\) is connected across a \(50 \mathrm{~V}\) DC source. If the forward bias resistance of the junction is \(50 \Omega\), the forward bias current is:

1 \(8.8 \mathrm{~mA}\)
2 \(1 \mathrm{~mA}\)
3 \(2 \mathrm{~mA}\)
4 \(20 \mathrm{~mA}\)
5 \(9.9 \mathrm{~mA}\)
Semiconductor Electronics Material Devices and Simple Circuits

151055 A transistor connected at common-emitter mode contains load resistance of \(5 \mathrm{k} \Omega\) and an input resistance of \(1 \mathrm{k} \Omega\). If the input peak voltage is \(5 \mathrm{mV}\) and the current gain is 50 , find the voltage gain:

1 250
2 500
3 125
4 50
5 75
Semiconductor Electronics Material Devices and Simple Circuits

151057 The current gain for a common emitter amplifier is 69 . If the emitter current is \(7 \mathrm{~mA}\), the base current is

1 \(0.1 \mathrm{~mA}\)
2 \(1 \mathrm{~mA}\)
3 \(0.2 \mathrm{~mA}\)
4 \(2 \mathrm{~mA}\)
Semiconductor Electronics Material Devices and Simple Circuits

151058 In a common base transistor circuit, the current gain is 0.98 . On changing the emitter current by \(5.00 \mathrm{~mA}\), the change in collector current is

1 \(0.196 \mathrm{~mA}\)
2 \(2.45 \mathrm{~mA}\)
3 \(4.9 \mathrm{~mA}\)
4 \(5.1 \mathrm{~mA}\)
Semiconductor Electronics Material Devices and Simple Circuits

151054 A p-n junction in series with a resistance of \(5 \mathrm{k} \Omega\) is connected across a \(50 \mathrm{~V}\) DC source. If the forward bias resistance of the junction is \(50 \Omega\), the forward bias current is:

1 \(8.8 \mathrm{~mA}\)
2 \(1 \mathrm{~mA}\)
3 \(2 \mathrm{~mA}\)
4 \(20 \mathrm{~mA}\)
5 \(9.9 \mathrm{~mA}\)
Semiconductor Electronics Material Devices and Simple Circuits

151055 A transistor connected at common-emitter mode contains load resistance of \(5 \mathrm{k} \Omega\) and an input resistance of \(1 \mathrm{k} \Omega\). If the input peak voltage is \(5 \mathrm{mV}\) and the current gain is 50 , find the voltage gain:

1 250
2 500
3 125
4 50
5 75
Semiconductor Electronics Material Devices and Simple Circuits

151057 The current gain for a common emitter amplifier is 69 . If the emitter current is \(7 \mathrm{~mA}\), the base current is

1 \(0.1 \mathrm{~mA}\)
2 \(1 \mathrm{~mA}\)
3 \(0.2 \mathrm{~mA}\)
4 \(2 \mathrm{~mA}\)
Semiconductor Electronics Material Devices and Simple Circuits

151058 In a common base transistor circuit, the current gain is 0.98 . On changing the emitter current by \(5.00 \mathrm{~mA}\), the change in collector current is

1 \(0.196 \mathrm{~mA}\)
2 \(2.45 \mathrm{~mA}\)
3 \(4.9 \mathrm{~mA}\)
4 \(5.1 \mathrm{~mA}\)