What exactly does a battery provide in an electrical circuit?

In the equation for Ohm's Law, the symbol I (upper case "i") represents ____.

In the equation for Ohm's Law, the symbol V represents ____.

Electrical current is measured in units of _____.

Electrical resistance is measured in units of _____.

Electrical voltage is measured in units of _____.

Electrical energy is measured in units of _____.

A(n) ____ circuit has only one path for all charges that move through the circuit.

A(n) ____ circuit has more than one path for charges that move through the circuit.

The closed path that electric current follows is a(n) ____.

Transferring charge by touching or rubbing is called charging by ____.

Accumulation of excess charge on an object is called ____.

Any material in which electrical charge can move easily is called a(n) ____.

Any material in which electrical charge can not move easily is called a(n) ____.

If you bring a charged object near to an uncharged object, the electrons in the second object will move, rearranging themselves, so that the second object now has its own net charge. This process is called charging by __.

Which has more electrical resistance? A thinner wire or a thicker wire?

A magnet's field is strongest at ____.

Opposite magnetic poles ____.

Similar magnetic poles ____.

A group of aligned atoms that behaves like a magnet is called a magnetic ____.

When electric current flows through a wire, it creates a ____ around the wire.

An electric ___ is a device that changes electrical energy into mechanical energy by spinning an electromagnet between the poles of a permanent magnet.

A device that uses the principle of electromagnetic induction to produce electric current is called a ___.

Current that flows in only one direction through a circuit is called ____.

Electric current that continuously reverses direction in a circuit is ______.

The voltage difference across a standard wall socket is ___ Volts.

A device that can either increase of decrease voltage is called a ____.

Which metal is commonly used as a conductor in household wiring?