When an ammeter is put in a circuit does it read (slightly) less or more than the actual current in - Physics - Moving Charges And Magnetism

Question

When an ammeter is put in a circuit does it read (slightly) less or
more than the actual current in the original circuit ? When a
voltmeter is put across a part of the circuit does it read
(slightly )less or more than the original voltage drop explain
Please answer

Shivam Ranjan Sinha · Accepted Answer

When an ammeter is put in a circuit does it read (slightly) less or more than the actual current in the original circuit ? When a voltmeter is put across a part of the circuit does it read (slightly )less or more than the original voltage drop. explain Please answer..

When an ammeter is put in a circuit does it read (slightly) less or more than the actual current in the original circuit ? When a voltmeter is put across a part of the circuit does it read (slightly )less or more than the original voltage drop. explain
Please answer..