EVERYDAY SCIENCE

SCIENCE

PHYSICAL SCIENCES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is resistance?
A
A material’s tendency to resist the flow of charge (current)
B
To follow along with everything
C
Resistance means nothing and it is just a silly made up word
D
None of the above
Explanation: 

Detailed explanation-1: -The intrinsic property of materials to resist the flow of electric current is called resistivity.

Detailed explanation-2: -Resistance is a material’s tendency to resist the flow of charge (current).

Detailed explanation-3: -If it is a conductor, the resistance to the flow of current is less and vice versa for an insulator. A Resistor works by using this natural property of resistivity/conductivity of any material. It absorbs energy from the flow of electrons (electric energy) and dissipates in the form of heat (thermal energy).

Detailed explanation-4: -In physics, resistance is opposition to the flow of electric charges in an electric current as it travels through matter. The SI unit for resistance is the ohm. Resistance occurs because moving electrons in current bump into atoms of matter.

Detailed explanation-5: -Resistance refers to the amount that an object impedes or resists in an electric current. Electric current refers to the flow of electrons. An easier way to explain resistance is to consider an example of a person in a crowded market struggling to go from one shop to another.

There is 1 question to complete.