Please tell about terminal potential difference and some other thing

Asked by hanumaan | 22nd Sep, 2010, 12:00: AM

Expert Answer:

Terminal potential difference: Potential difference (pd) or voltage across the terminals of a power supply, such as a battery of cells. When the supply is not connected in circuit its terminal voltage is the same as its electromotive force (emf); however, as soon as it begins to supply current to a circuit its terminal voltage falls because some electric potential energy is lost in driving current against the supply's own internal resistance. As the current flowing in the circuit is increased the terminal voltage of the supply falls. 

Answered by  | 22nd Sep, 2010, 08:15: PM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.