When AC flows through a pure capacitance then the current is in phase with emf. leads the emf by 90o. leads the emf by - 90o. lags the emf by 90o. TRUE ANSWER : ? YOUR ANSWER : ?
Rms value is defined based on which of the following? Current Charge transfer Voltage Heating effect TRUE ANSWER : ? YOUR ANSWER : ?
In RL series circuit R=2Ω and L=2mH. What is the value of time constant? 4msec 1msec 2msec 100sec TRUE ANSWER : ? YOUR ANSWER : ?
Among the options which metal has the highest electrical conductivity? Aluminium. Steel. Stranded aluminium. Copper. TRUE ANSWER : ? YOUR ANSWER : ?
In 2 port network Z12 = Z21 indicates which property linear. unilateral. non linear. bilateral. TRUE ANSWER : ? YOUR ANSWER : ?
Given network is having N nodes and B branches, then number of twigs are N. N - 1. B - N + 1. B - N - 1. TRUE ANSWER : ? YOUR ANSWER : ?
A certain network consists of large number of ideal linear resistances, one of which is designated as R and two constant ideal source. The power consumed by R is P1 when only the first source is active and P2 when only second source is active. In both sources are active simultaneously then the power consumed by R is (P1 ± P2 )2. P1 ± P2 . √P1 ± √P2. (√P1 ± √P2)2. TRUE ANSWER : ? YOUR ANSWER : ?
From the circuit diagram shown in question 1 find the maximum power transferred to the load. 9 W. 15.247 W. 4.547 W. 1.875 W. TRUE ANSWER : ? YOUR ANSWER : ?
The greater the internal resistance of a cell the greater the emf. the greater the terminal voltage. the lesser the emf. the lesser the terminal voltage. TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is the correct relation? AD-BC = 1. all of these. AC-BD = 1. AB-CD = 1 . TRUE ANSWER : ? YOUR ANSWER : ?