Semiconductor Electronics: Materials, Devices And Simple Circuits

Question

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In the circuit shown in figure, when the input voltage of the base resistance is 10 V, Vb, is zero and V_ce is also zero. Value of β is

133

154

196

105

Solution

133

Given:-

V_i = 10 V

R_b = 400 kΩ

= 400 × 10³ Ω

R_c = 3 kΩ = 3 × 10³ Ω

V_be = 0

V_ce = 0

V_cc = 10 V

As V_i $-$ V_be = R_bI_b

10 $-$ 0 = ( 400 × 10³ ) I_b

⇒ I_b = $\frac{10}{3 \times 10^{3}}$

= 25 × 10^-6 A

⇒ I_b = 25 μA

and V_cc $-$ V_ce = I_c R_c

⇒ I_c = $\frac{10}{3 \times 10^{3}}$

⇒ = 3.33 × 10^-3

⇒ I_c = 3.33 mA

β :- The ratio of collector current I_c to base current I_b

β = $\frac{I_{c}}{I_{b}}$

= $\frac{3.33 \times 10^{- 3}}{25 \times 10^{- 6}}$

β = 133

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Semiconductor Electronics: Materials, Devices And Simple Circuits

In the circuit shown in figure, when the input voltage of the base resistance is 10 V, Vb, is zero and V_ce is also zero. Value of β is

133

154

196

105

Some More Questions From Semiconductor Electronics: Materials, Devices and Simple Circuits Chapter

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?

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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

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For Daily Free Study Material Join wiredfaculty

Semiconductor Electronics: Materials, Devices And Simple Circuits

In the circuit shown in figure, when the input voltage of the base resistance is 10 V, Vb, is zero and Vce is also zero. Value of β is 133 154 196 105

Some More Questions From Semiconductor Electronics: Materials, Devices and Simple Circuits Chapter

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

If the lattice constant of this semiconductor is decreased, then which of the following is correct?

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

In the circuit shown in figure, when the input voltage of the base resistance is 10 V, Vb, is zero and V_ce is also zero. Value of β is

133

154

196

105