A constant amount of charge passes through a conductor. How is current affected if the same amount of charge passes in less time?
A, The current decreases.
B. The current increases.
C. The current is not affected by the time it takes the charge to pass through.
D. The current initially decreases, and then is gradually restored.

B. The current increases.

Explanation:

As we know that rate of flow of charge through the conductor is known as electric current

So we have

here we know that charge Q flowing through the conductor is constant while the time in which it passes through it is decreased

so we can say that the ratio of charge and time will increase

so here we have

So correct answer will be

B. The current increases.

a longitudinal wave moves energy that is to the direction of the wave’s movement. - true

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia