Electric current passing through the circuit produces________?
Aluminous effect
Bchemical effect
Call above effects
Dthermal effect
Emagnetic effect
Correct answer
C. all above effects
Explanation
The correct answer is all above effects.
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Study 121 Electrical Engineering MCQs with correct answers and explanations.
Correct answer
C. all above effects
Explanation
The correct answer is all above effects.
Correct answer
C. Zero
Explanation
Internal resistance of ideal inductor is zero. As there is no resistance, there should not be any dissipation of power. Pure inductor has no resistive component, so it active power dissipation is zero.
Correct answer
C. conductance
Explanation
The correct answer is conductance.
Correct answer
D. 3P
Explanation
Assume 3 numbers of pure resistive loads each of value R. When these loads are connected in delta the power in each resistor is V^2/R and the total power is 3×V^2/R. When these loads are connected in star the voltage applied across each = V/(sqrt of 3). Power in each load becomes = V^2/(3×R) . and the total load is =(3×V^2)/(3×R)=V^2/R. You can see this is 3 times less than the total power when the loads are connected in delta. One important point is that the loads should withstand higher voltage (line voltage) and higher current when connected in delta than when they are connected in star so power in delta is 3 time power correct answer is 3P
Correct answer
B. Current
Explanation
The correct answer is Current.
Correct answer
D. 6.4 A, 9.6 A
Explanation
The correct answer is 6.4 A, 9.6 A.
Correct answer
D. 1/9 times
Explanation
The correct answer is 1/9 times.
Correct answer
A. 400 Ω
Explanation
The correct answer is 400 Ω.
Correct answer
D. Silver
Explanation
The correct answer is Silver.
Correct answer
C. high
Explanation
The correct answer is high.