What are the experiments that can be done using these apparatus

Ohm's Law Verification: Using the power supply, ammeter, voltmeter, and resistor, you can vary the voltage across the resistor and measure the corresponding current. Plotting voltage vs. current will yield a straight line, demonstrating that voltage is directly proportional to current for a fixed resistance.

Resistance Measurement: The ammeter and voltmeter can be used to measure the current through and voltage across an unknown resistor. Using Ohm's Law (R = V/I), you can calculate its resistance.

Series and Parallel Circuits: You can connect multiple resistors in series or parallel with the power supply and measure the total voltage and current, as well as the voltage across and current through individual resistors, to verify the laws governing these circuit configurations.

Electromagnetism: If the coil is an electromagnet (wound around an iron core, not shown), you can investigate the relationship between current and magnetic field strength. You could also use the coil and a magnet to demonstrate electromagnetic induction by moving the magnet in and out of the coil while connected to a galvanometer (if available, not shown) to detect induced current.

Magnetic Field Mapping: With the compass, you can map the magnetic field lines around a current-carrying wire or a coil.