Advertisements
Advertisements
प्रश्न
State two causes of energy loss in a transformer.
Advertisements
उत्तर
Causes of energy loss in a transformer:
1) Eddy currents developed in the core.
2) Hysteresis loss because of repeated magnetisation and demagnetisation of the iron core.
APPEARS IN
संबंधित प्रश्न
How much work is done in moving a charge of 2 C across two points having a potential difference of 12 V?
Define one coulomb charge.
What is a voltmeter?
In the circuit shown below:
The potential difference across the 3 Ω resistor is:
The voltage across a 3Ω resistance is 6 V. How large is the current? What is
the resistance of a filament lamp when a voltage of 3 V across it causes a
current of 0.5 A?
Explain why potential difference is always less than the e.m.f. of a cell?
Draw a graph of Potential difference (V) versus Current (I) for an ohmic resistor. How can you find the resistance of the resistor from this graph?
If P and V are the power and potential of device, the power consumed with a supply potential V1 is:
______ is work done per unit charge.
Inside a hollow charged spherical conductor, the potential ______
