Electric current passing through the circuit produces

The correct answer is: All of the above.

Electric current passing through a circuit can produce a magnetic effect, a luminous effect, a thermal effect, and a chemical effect.

• Magnetic effect: When an electric current passes through a conductor, it creates a magnetic field around the conductor. This magnetic field can be used to create electromagnets, which are used in many devices, such as motors, generators, and loudspeakers.
• Luminous effect: When an electric current passes through a gas, it can cause the gas to emit light. This is the principle behind light bulbs and neon signs.
• Thermal effect: When an electric current passes through a conductor, it causes the conductor to heat up. This is the principle behind electric heaters and stoves.
• Chemical effect: When an electric current passes through a solution, it can cause the solution to react. This is the principle behind electrolysis, which is used to separate metals from ores and to produce chemicals such as chlorine and sodium hydroxide.