Potentiometer and EMF Comparison Quiz

What is the primary purpose of using a potentiometer in this experiment?

• To compare EMFs of two cells

• To measure current

• To measure resistance

• To generate voltage

Which component is used to check the correctness of the connections?

• Battery

• Galvanometer

• Rheostat

• Ammeter

What indicates that the connections are correct when using the galvanometer?

• Opposite deflections

• Constant deflection

• No deflection

• Fluctuating deflection

What is the balancing length L1 used for in the experiment?

• To compare EMFs

• To determine voltage

• To calculate resistance

• To measure current

How is the ratio L1 by L2 calculated?

• By multiplying the lengths

• By dividing the lengths

• By adding the lengths

• By subtracting the lengths

What is adjusted to note the ammeter reading during the experiment?

• Battery

• Rheostat

• Two-way key

• Galvanometer

What is the purpose of repeating the experiment with different ammeter readings?

• To compare different cells

• To calibrate the device

• To measure resistance

• To ensure accuracy

What is the final calculation performed in the experiment?

• Voltage difference

• Resistance ratio

• EMF ratio

• Current ratio

Which two primary cells are compared in this experiment?

• Leclanché and Daniel cells

• Zinc-carbon and Alkaline cells

• Dry cell and Lead-acid cell

• Nickel-cadmium and Lithium-ion cells

What is the significance of zero deflection in the galvanometer?

• Indicates short circuit

• Indicates open circuit

• Indicates maximum current

• Indicates balanced EMF