ELECTRICAL CIRCUITS-1 (Practical)

7. Show skill in measuring effective resistance of a coll.

7.1 Draw the circuit diagram for determining the effective resistance.

7.2 Collect tools & equipment.

7.3 Correct the circuit according to the circuit diagram using proper equipment.

7.4 Check all connection points before actual operation.

7.5 Connect DC supply and record readings.

7.6 Calculate Ohmic resistance from the formula by recording relevant data:Rdc=Pdc/l2dc

7.8 Determine effective resistance from the formula Rac=Pac/l2ac

7.9 Compare the Ohmic resistance and effective resistance and find the ratio.