The electrical energy required to heat a bucket of water to a certain – McqOptions

MCQOPTIONS

1.	The electrical energy required to heat a bucket of water to a certain temperature is 10 kWh. If heat losses, are 10%, the energy input is ____________
A.	2.67 kWh
B.	3 kWh
C.	2.5 kWh
D.	3.5 kWh
Answer» B. 3 kWh

Discussion

No Comment Found

Related MCQs

A circuit excited by voltage V has a resistance R which is in series with an inductor and a capacitor connected in parallel. The voltage across the resistor at the resonant frequency is ___________
For a transmission line, open circuit and short circuit impedances are 10 and 20 . Then characteristic impedance is ____________
A capacitor stores 0.15C at 5 V. Its capacitance is ____________
A series RC circuit has R = 15 and C = 1 F. The current in the circuit is 5 sin 10t. The applied voltage is _____________
A 3 phase balanced supply feeds a 3-phase unbalanced load. Power supplied to the load can be measured by ___________
The impedance of an RC series circuit is 12 at f = 50 Hz. At f = 200 Hz, the impedance will be?
In an RC series circuit R = 100 and X<sub>C</sub> = 10 . Which of the following is possible?
In an AC circuit, the maximum and minimum values of power factor can be ___________
The current rating of a cable depends on ___________
The electrical energy required to heat a bucket of water to a certain temperature is 10 kWh. If heat losses, are 10%, the energy input is ____________