An electrical device designed to hinder current flow is a

An electrical device designed to hinder current flow is a

• A. Switch
• B. Resistor
• C. Conductor
• D. Magnet

Answer: (B)

The main idea here is how resistance limits electric current in a circuit. A resistor is a component designed to oppose the flow of electrons, providing controlled opposition to current. For a given voltage, higher resistance means less current, because I = V/R. This is why resistors are used to set or limit how much current reaches other parts of a circuit and to protect components by keeping currents at safe levels. They also transform some of the electrical energy into heat as current passes through. A switch, in contrast, is about turning the circuit on or off; when closed it allows current to flow with little hindrance, and when open it stops current. A conductor is meant to let current pass easily, having low resistance. A magnet influences magnetic fields and can be involved in devices like motors or generators, but it isn’t a device whose main purpose is to hinder current flow in a simple circuit.

The main idea here is how resistance limits electric current in a circuit. A resistor is a component designed to oppose the flow of electrons, providing controlled opposition to current. For a given voltage, higher resistance means less current, because I = V/R. This is why resistors are used to set or limit how much current reaches other parts of a circuit and to protect components by keeping currents at safe levels. They also transform some of the electrical energy into heat as current passes through.

A switch, in contrast, is about turning the circuit on or off; when closed it allows current to flow with little hindrance, and when open it stops current. A conductor is meant to let current pass easily, having low resistance. A magnet influences magnetic fields and can be involved in devices like motors or generators, but it isn’t a device whose main purpose is to hinder current flow in a simple circuit.