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Networks Analysis and Synthesis - Engineering

Q1:

The current through a 10 Ω resistance in a dc circuit having two emf sources is 3A. If this resistance is changed to 20 Ω, the new value of current will be

A less than 3 A

B equal or less than 3 A

C equal to or less or more than 3 A

D 1.5 A

ANS:A - less than 3 A

The current will be less than 3 A. It may not be 1.5 A because other resistance in the circuit also affect the value of current.