MAXIMUM POWER TRANSFER THEOREM
EX. NO: 4(a)
AIM:
To verify the maximum power transfer theorem for the given circuit.
APPARATUS REQUIRED:
S.NO
APPARATUS
TYPE
RANGE
QUANTITY
DC
(030)V
1

1KΩ
2
1KΩ
1
DC
(010)mA
1
1
RPS
2
Resistor
3
Variable Resistor
4
Ammeter
5
Bread board


1
6
Connecting wires


Few
THEORY:
MAXIMUM POWER TRANSFER THEOREM:
In electrical engineering, the maximum power (transfer) theorem states
that, to obtain maximum external power from a source to a load with a finite
internal resistance, the resistance of the load must be made the same as that of
the source.
The theorem applies to maximum power, and not maximum efficiency. If
the resistance of the load is made larger than the resistance of the source, then
efficiency is higher, since most of the power is generated in the load, but the
overall power is lower since the total circuit resistance goes up.
If the internal impedance is made larger than the load then most of the
power ends up being dissipated in the source, and although the total power
dissipated is higher, due to a lower circuit resistance, it turns out that the amount
dissipated in the load is reduced.
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