Explanation

Galvanometer works on electromagnetic principles, where electric current produces a magnetic field.

The interaction between magnetic field and coil causes the needle to deflect, allowing current measurement.

A galvanometer measures small currents.

To measure larger currents, a low resistance (called a shunt) is connected in parallel, converting it into an ammeter.

Explanation

When a meteoroid enters Earth’s atmosphere, it burns and becomes a meteor (shooting star).

If it survives the burn and lands on Earth, it is called a meteorite.

Explanation

Transistors were invented in 1947 at Bell Labs by Bardeen, Brattain, and Shockley.

This invention revolutionized electronics and led to modern computers.

Explanation

The process of copying data from a server to a personal computer is called downloading.

It involves transferring files or information from a remote source to a local device.

Explanation

animal and its child relation have been shown.

The young of humans is called the child.

The young lion is called a cub

Explanation

"Mr." and "English" are capitalized because they are proper nouns.

"Teacher" is not capitalized because it's a common noun in this context.

Explanation

"Put off" means to postpone or delay something.

Put off means بند کرو

Explanation

Explanation

Corrosion occurs at the anode, where the metal undergoes oxidation,

Losing electrons and deteriorating into ions.

This process is the result of an electrochemical cell. 

In this fundamental mechanism, the anode facilitates the loss of electrons and the cathode facilitates the gain of electrons.

Allowing the overall chemical reaction of corrosion to proceed. 

Explanation

Hatf IX (Nasr):

A short-range, surface-to-surface ballistic missile system.

Serves as a tactical nuclear weapon for battlefield use.

Developed by Pakistan’s National Development Complex (NDC).

Designed to counter advancing armored formations.

Can carry low-yield nuclear or conventional warheads.

Operational range is approximately 70 km.