Question

4. While performing the activity for Ohm's law, teacher used the device shown below. Identify the device. (a) Voltmeter (b) Ammeter (c) Resistance (d) Key/ Switch​

Answer 1

The voltmeter is used to perform the ohm's law.

option (a) is correct.

Explanation:

• Ohm's law is used in physics and it was formulated by George Ohm in 1827.
• According to Ohm's law, When the current is passing between two points then the voltage will be directly proportional to the current.
• The relationship between current and voltage is given below,
• I = V/R
• Here I = current
• V = voltage  
• R = resistance
• Mostly it is used to measure current or voltage across a circuit.

Answer 2

Answer:

( d) key/switch

Explanation:

Hope it is helpful for you