Circuits and Ohms Law

Front

What is Ohm's Law?

Back

Ohm's Law states that the current (I) through a conductor between two points is directly proportional to the voltage (V) across the two points and inversely proportional to the resistance (R) of the conductor. It can be expressed as V = I × R.

Front

What happens to current if voltage increases while resistance remains constant?

Back

The current will increase.

Front

What is the effect of a thicker wire on resistance?

Back

A thicker wire results in a decrease in resistance.

Front

What is the unit of electrical resistance?

Back

The unit of electrical resistance is the Ohm (Ω).

Front

What does a battery symbol represent in a circuit diagram?

Back

A battery symbol represents a source of voltage in a circuit.

Front

What is the formula to calculate voltage in a circuit?

Back

Voltage (V) can be calculated using the formula V = I × R, where I is the current in amperes and R is the resistance in ohms.

Front

What is a series circuit?

Back

A series circuit is a type of electrical circuit in which the components are connected end-to-end, so that the same current flows through all components.

Front

What is a parallel circuit?

Back

A parallel circuit is a type of electrical circuit in which the components are connected across common points or junctions, allowing multiple paths for current to flow.

Front

What is the relationship between voltage, current, and resistance?

Back

The relationship is defined by Ohm's Law: V = I × R.

Front

What does the symbol 'Ω' represent?

Back

The symbol 'Ω' represents Ohms, the unit of measurement for electrical resistance.