What does the A input jack on the DMM measure?

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Multiple Choice

What does the A input jack on the DMM measure?

Explanation:
The A input jack on a digital multimeter is for measuring current. When you measure current, you place the meter in series with the circuit so all the current flows through the meter. Inside, the meter uses a low-value shunt resistor to convert that current into a small voltage, and the display shows the corresponding current in amperes (or milliamperes, depending on the range). This is different from measuring voltage or resistance, which use the other input and function settings. Hz (frequency) is measured using the frequency function, typically alongside voltage measurements, not through the current input.

The A input jack on a digital multimeter is for measuring current. When you measure current, you place the meter in series with the circuit so all the current flows through the meter. Inside, the meter uses a low-value shunt resistor to convert that current into a small voltage, and the display shows the corresponding current in amperes (or milliamperes, depending on the range). This is different from measuring voltage or resistance, which use the other input and function settings. Hz (frequency) is measured using the frequency function, typically alongside voltage measurements, not through the current input.

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