Day 2 Current

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 is mathematically expressed as V = I × R.

Front

What does the formula I × R represent?

Back

The formula I × R represents Voltage (V). It indicates that the product of current (I) and resistance (R) gives the electric potential difference.

Front

What is the value of band 2 in a resistor color code?

Back

The value of band 2 in a resistor color code is 7.

Front

What is Resistance in electrical terms?

Back

Resistance is the ability of a material to reduce the flow of electrons, measured in Ohms (Ω).

Front

What unit is current measured in?

Back

Current is measured in Amperes (A).

Front

What is the relationship between Voltage, Current, and Resistance?

Back

The relationship is defined by Ohm's Law: V = I × R, where V is voltage, I is current, and R is resistance.

Front

What is the unit of Voltage?

Back

The unit of Voltage is Volts (V).

Front

What does a higher resistance indicate about current flow?

Back

A higher resistance indicates that less current will flow for a given voltage, according to Ohm's Law.

Front

What is the formula for calculating Power in an electrical circuit?

Back

Power (P) can be calculated using the formula P = V × I, where V is voltage and I is current.

Front

What is the effect of increasing Voltage on Current, assuming Resistance remains constant?

Back

Increasing Voltage will increase Current, as per Ohm's Law (V = I × R).