A-Level Physics Paper 3 Experiment Planning Quiz

What is the main objective of the experiment with the unmarked sealed square box?

• To find the capacitance of the box.

• To measure the voltage across the terminals.

• To determine the arrangement of components and identify the terminals.

• To calculate the power consumption of the circuit.

Which components are provided for the experiment?

• A 12V DC supply and a 200 ohm resistor.

• A 5V DC supply and a 150 ohm resistor.

• A 6V DC supply, a 100 ohm resistor, and a digital ammeter.

• A 9V battery and a 50 ohm resistor.

What is the first step in planning the experiment?

• Draw a circuit diagram for the box.

• Connect the power supply directly to the terminals.

• Measure the resistance of each terminal.

• Connect the power supply and 100 ohm resistor in series across two terminals.

How is the current calculated when a 220 ohm resistor is between terminals A and B?

• By dividing 6V by 220 ohms.

• By dividing 6V by the sum of 100 ohms and 220 ohms.

• By subtracting 220 ohms from 6V.

• By multiplying 6V by 220 ohms.

What is the purpose of the 100 ohm resistor in the experiment?

• To increase the total resistance.

• To measure the current.

• To prevent a short circuit.

• To decrease the voltage.

What current is expected if the 470 ohm resistor is between terminals A and B?

• 0.0087 amps

• 0.060 amps

• 0.011 amps

• 0.0187 amps

Why is it important to connect the power supply and resistor between different terminals?

• To increase the current flow.

• To differentiate the resistance configurations.

• To measure the voltage drop across each terminal.

• To ensure the circuit is complete.

What is the expected current when the power supply and resistor are connected between terminals C and D?

• 0.0087 amps

• 0.0187 amps

• 0.011 amps

• 0.060 amps

What is the total resistance when both resistors and the 100 ohm resistor are in the circuit?

• 790 ohms

• 220 ohms

• 320 ohms

• 570 ohms

What is the final step in the experiment plan?

• Identify the capacitance of the box.

• Calculate the power consumption of the circuit.

• Connect the wires with the resistor and power supply across each terminal and compare the currents.

• Measure the voltage across each terminal.