Elect | MCQs

Explanation

The charges of Proton, Electron, Neutron respectively are:

• Proton: Positive charge (+1)
• Electron: Negative charge (-1)
• Neutron: Neutral charge (0)

Explanation

Chemiosmosis is the process where ATP is generated by using the energy stored in a proton gradient across a membrane.

In the context of photosynthesis, this proton gradient is established across the thylakoid membrane in the chloroplast. 

Explanation

 While an electron always has an electric field due to its charge, its spin generates a magnetic field.

The motion of a charged particle (even if it's just spinning) creates a magnetic field.

Explanation

Explanation

A strong oxidizing agent has a greater Reduction potential. 

An oxidizing agent readily accepts electrons, which corresponds to a high reduction potential.

A higher reduction potential indicates a greater tendency for a substance to be reduced (gain electrons) and thus act as an oxidizing agent. 

Explanation

An electric circuit is a closed path through which electric current flows.

It enabling the transfer of electrical energy.

Electric current is measured in amperes using an ammeter.

Explanation

• Infrared waves are used in night vision equipment.
• They detect heat emitted by objects.
• It allowing visibility in low-light conditions.

Explanation

The red one is positive (+), the black one is negative (-).

Never connect the red cable to the negative battery terminal or a vehicle with a dead battery

Explanation

This wire is called a filament.

The filament is the part of the light bulb that produces light.

Filaments in incandescent light bulbs are made of tungsten

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Explanation

Sound travels at approximately 1,100 feet per second (766 miles per hour).

Radio waves travel at the speed of light, which is approximately 186,000 miles per second.