Question

describe the necessary theory the method of making high resistance by leakage method

Answer 1

Leakage method is one of the most effective and accurate methods used to measure the value of very high resistances.

Principle Used:

In leakage method, main concept used to calculate the value of resistance is the charging and discharging of a capacitor. A ballistic galvanometer is used to measure the amount of charge that the capacitor/condenser discharges.

In a laboratory, below are the list of items required in order to measure resistance via leakage method:

• Ballistic galvanometer
• Power supply / accumulator
• Capacitor
• Resistor whose value is to be measured)
• Few connecting wires
• Tapping key & morse key
• Lamp and scale arrangement
• Stop watch

Answer 2

Describe with necessary theory the method of measuring high resistance by leakage method.