When a glass rod is rubbed with silk cloth, it acquires ................ charge because ........... are removed from it.
Which information completes the given statement?
Positive, electrons
Positive, protons
Negative, electrons
Negative, protons
Earthing is provided in building to protect it from:
lightning
leakage of electric current
cyclone
thunderstorm
Which of the following area of India is not the most threatened by earthquakes?
North-East
Kashmir
West Bengal
Rajasthan
A charged object attracts an uncharged object by producing opposite charges in the nearer end of the uncharged object by the process of:
electric potential
electric induction
friction
electromagnetic induction
The weak zones around the boundaries of plates underneath earth, which are prone to slide and cause earthquake are commonly known as:
fault zone
eruption zone
explosion zone
sliding zone
High speed winds are accompanied by:
increased pressure
reduced pressure
water vapour
static electricity
Which of the following materials is used to make lightning rods?
Copper
Plastic
Bakelite
Sand paper
Which of the following is safest way to protect yourself from lightning?
run to an open field
open an umbrella for cover
take shelter under a tree
squat low on ground
When a glass rod is rubbed with a piece of silk cloth, then:
the glass rod and silk cloth both acquire positive charge.
the glass rod becomes positively charged while the silk cloth has a negative charge
the glass rod and silk cloth both acquire negative charge
the glass rod becomes negatively charged while the silk cloth has a positive charge
Suppose you are in a car and it is raining heavily with thunderstorms. Then what is the best way to protect yourself from a possible thunder storm fall?
remain in the car
get out of the car and take cover under the car
run to a nearby tree
get out and stand under an electric pole
