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**Methods for measurement of low resistance: **

1. Ammeter voltmeter method

2. Kelvin’s bridge method

3. Ohm meter method

4. Potentiometer method

5. Digital/analog multi-meter method.

**Methods for measurement of medium resistance:**

1. Ammeter voltmeter method

2. Digital/analog multi-meter method.

3. Wheatstone bridge method

4. Substitution method.

5. Carry- foster method

**Methods for measurement of high resistance:**

1. Direct deflection method

2. Loss of charge method

3. Megger

**Advantages of V-I method:**

1. Simple and economical method

2. Reasonably accurate

3. Instruments for test are easily available.

**Limitation of V- I method:**

1. Ammeter resistance must be zero and voltmeter resistance must be infinity for perfectly accurate measurement which is not possible.

2. Connection errors.