MEASUERMENT OF ARMATURE RESISTANCE AND
SHUNT FIELD WINDING RESISTANCE
OBJECT;-
To find the resistance of the given armature coil with use of ohms law
APPARATUS: -
Sr. No. Name of Components Range No. Reqd. Remark
1. Switch Pad
2. Variable Resistance
3. Ammeter
4. Voltmeter
THEORY: -
This experiment is performed on the basis of ohms law and it is stated that the ratio of potential difference (v) between any two points and conductor to the current provided them, as constant temperature of a conductor does not change.
V = Constant (R) =Resistance
I
This practical is also performed on shunt field by verify ohms law for same.
PROCEDURE: -
a) Set up the connection
b) Step by step increase armature voltage
c) Note down respectively change in current
d) Make the calculations
e) Do the same procedure for shunt field.
OBSERVATIONS: -
No. VOLTAGE [V] CURRENT [I] RESISTANCE [R] AVERAGE RESISTANCE
1
2
3
4
No. VOLTAGE [V] CURRENT [I] RESISTANCE [R] AVERAGE RESISTANCE
1
2
3
4
CONCLUSION: -