Test: Circuit Theorems - 1
10 Questions MCQ Test Topicwise Question Bank for Electrical Engineering | Test: Circuit Theorems - 1
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Superposition theorem is applicable only to network that are
In any lumped network with elements in b branches 
for all holds good according to
for all holds good according to
means the total sum of instantenous power consumed in various elements in the branches of a network is zero, which is the statement of Tellegen’s theorem.
The Theven's equivalent resistance to the left of AB in figure given below is given by
For finding the Thevenin’s equivalent resistance, 8 A current source will be open circuited while v volt voltage source will be short circuited.
Hence,
For which of the following, Thevenin’s and Norton’s equivalents can’t be developed?
Applying KVL, we get
Putting the value of V1 from equation (ii) into equation (i), we get
In which of the following it is not desired to attain the condition of maximum power transfer?
A simple equivalent circuit of the two terminal network shown in figure below is
For the given circuit, Req across the given terminals = R.
For the circuit shown below, a resistance R is to be connected across an active network, it is given that when
(i) R =∞, V = 5 volts
(ii) R = 0, current output of the active source is 2.5 A.
What would be the current through tfwhen the value of R is 5 Ω?
When R = ∞, Voc= V = 5 volts
When R = 0 , ISC = 2 .5 A
Hence, the Thevenin's equivalent circuit will be drawn as shown below.
A generator of internal impedance I ZgI delivers maximum power to a load impedance Zp , only if
In the circuit shown below, the current through the 5Ω resistor is
An ideal voltage source is never short circuited. Hence, we should not use superposition theorem. The voltage across the 5Ω resistor will be 10 volts. Hence, current through the 5 Ω resistor
=10/5 = 2 A
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