Lightning rods helps to carry charge from cloud to earth, otherwise lightning rods will be of no use.

Sometimes electric discharge can take place between the charged cloud and earth. While passing over a tree or a tall building an opposite charge may be induced causing a lightning to a building and if the charge is large it may cause severe damage and may prove to be fatal. In the rainy season water being a good conductor of electricity increases the chances of lightning striking a building.

A lightning conductor a device used to prevent tall buildings from being struck by lightning. It is fixed on the top of tall buildings with one end at the top having several sharp metal spikes that attract lightning. This is connected to a copper strip. The other end of the strip is attached to a large metal plate buried deep into the ground causing the electric charge to flow into the earth. This process is called earthing.

Equipment earthing is a connection done through a metal link between the body of any electrical appliance, or neutral point, as the case may be, to the deeper ground soil. The metal link is normally of MS flat, CI flat, GI wire which should be penetrated to the ground earth grid.

A lightning conductor is generally made of metal spikes , which are connected to ground through a copper wire . The spikes are pointed , hence electric field strength is strong around pointed spikes . Due to this intense electric field , spikes conduct electric charge easily to the ground when lightning strikes he building .

The lightening conductor is made of conducting material such as copper or aluminium. so, the given statement is true. 

Lightning conductors are metallic conductors which acts as a path for flow of current that is discharged through lightning strike.

When negative terminal of battery is grounded, positive terminal of battery is at $+12  V$ . When positive terminal is grounded, the negative terminal will be at $-12  V$.

Buildings are highly susceptible to a lightning strike because of the following reasons:

Lightning strikes the tallest buildings in order to attain the shortest path for the discharge.

Pointed lightning conductors attract more charge because of small cross sectional area. Surface density of charge is hence increased considerably.

A lightning conductor consists of a conductor fixed on top of the building. The conductor consists of several sharp metal spikes connected to a thick copper strip. The other end of the copper strip is fixed to a metal plate buried deep inside the ground. 

The lightning conductor used in building, protects the building by conducting the lightning safely to the ground.

Open circuit breaker - open isolator - close earthing switch represents the sequence of operations of isolator circuit breaker and earthing switch while opening a circuit.

A lightning rod conducts a positive charge up to meet the negative charge of a lightning strike, allowing the strike to hit the rod and travel through attached wires to an underground connection. This diverts the strike away from a building, preventing or lessening potential damage.

 Ensure circuit breaker is open - close isolator - open earthing switch if any close circuit breaker .

An ordinary tube light used for lighting purposes contains:

The given statement is false. This is because a lightening conductor is a metal rod mounted on buildings intended to protect the structure from the 'Lightening strike' and not from 'earthquakes'.

An insulator does not allow the electric current to flow through it. Insulator offers very high resistance to the flow of electric current (charge).

Conductor cables carry lightening current from lightening rod to the ground. Since electrode is an electrical conductor. So, the answer is "an electrode".

A lightening conductor is a metal rod mounted on a structure and designed to protect the structure from lightening strike. 

Given instantaneous current,

a) It made from metal like Iron.
b) Its top end is pointed.
c) Obviously on the top of building far from any other metal.
d) It is placed below the ground with a copper plate.