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10Electrical resistance is the obstruction offered by a conductor to the flow of electric charges.
Thick copper wires have more resistance than thin copper wires of the same length.
Resistance is caused by collisions between moving charges and atoms of the conductor.
The SI unit of resistance is named after Isaac Newton.
Resistance is a derived unit including mass, distance, current, and time.
Ohm’s law states that current is directly proportional to voltage and inversely proportional to resistance.
If a conductor has 1 Ω resistance, a 1 V potential difference will produce 2 A current.
Increasing the length of a conductor increases its resistance.
Current flows more easily in thin wires than thick wires of the same material.
An immersion rod’s resistance determines the amount of current for a given voltage.
Percentage: 0%
What does electrical resistance depend on?
Which of the following is the unit of resistance?
What is the Greek symbol for resistance?
According to Ohm’s law, current (I) is equal to:
A thick wire has $$______ resistance than a thin wire of the same length.
Which factor does NOT affect resistance?
If voltage is doubled and resistance stays constant, current will:
The unit ohm can be expressed in fundamental units as:
Collisions between moving charges and atoms in a conductor cause:
An immersion rod connected to 220 V has 44 Ω resistance. The current will be:
The obstruction offered by a conductor to the flow of electric charges is called ______ resistance.
The SI unit of resistance is ______.
The ______ symbol used to represent resistance is Ω.
Resistance depends on the ______ and thickness of the conductor.
According to ______’s law, R = V/I.
If 1 A current flows through a conductor with 1 V potential difference, the resistance is ______ Ω.
Resistance is caused due to collisions between moving ______ and atoms.
The fundamental unit of current included in resistance is ______.
Resistance increases if the cross-sectional area of the wire is ______.
The current through an ______ rod can be calculated using I = V/R.