Question

A device used to change the resistance in an electric circuit is

A. ammeter B. rheostat

C. galvanometer D. voltmeter​

Answer 1

The correct answer to this question is option B: Rheostat

• Rheostats are devices or instruments that are used to regulate the flow of current in an electric circuit.
• The variable resistor gets its name from the fact that it is used to adjust the current in an electric circuit.
• The circuit's electrical resistance can be adjusted without disrupting the current flow.
• The ammeter is used to determine the magnitude of current flow, while the galvanometer is used to detect current flow in small quantities. As a result, both are inaccurate.
• A voltmeter is a device that measures the difference in voltage between two terminals in a cell.
• Thus, a rheostat is adjustable equipment used to change resistance.

Answer 2

Answer:

b) rheostat

Explanation:

mark me as brainleast