For the given circuit, input resistance RI = 20Ω, hfe = 50. Output resistance = ∞. Find the new values of input and output resistance, if a base resistance of 2kΩ is added to the circuit.

Related MCQs

• Consider the following circuit, where source current = 10mA, hfe = 50, hie = 1100Ω, then for the transistor circuit, find output resistance RO and input resistance RI.
• In the given circuit, hfe = 50 and hie = 1000Ω, find overall input and output resistance.
• A transistor has hie =2kΩ, hoe=25µmhos and hfe=60 with an unbypassed emitter resistor Re=1kΩ. What will be the input resistance and output resistance?
• A transistor has hie =1KΩ and hfe=60 with an bypassed emitter resistor Re=1kΩ. What will be the input resistance and output resistance?
• Consider a Darlington amplifier. In the self bias network, the biasing resistances are 220kΩ and 400 kΩ. What can be the correct value of input resistance if hfe=50 and emitter resistance = 10kΩ.
• Consider the circuit. Given hfe = 50, hie = 1200Ω. Find voltage gain.
• Given that IB = 5mA and hfe = 55, find load current.
• Find net voltage gain, given hfe = 50 and hie = 1kΩ.
• Given hfe = 60, hie=1000Ω, hoe = 20μ Ω–, hre = 2 * 10-4. Find the current gain of the BJT, correct up to two decimal points.
• Given that capacitance w.r.t the input node is 2pF and output node is 4pF, find capacitance between input and output node.