ISRO Scientist or Engineer Electrical 2017

The generator will feed more leading KVAR to bus bar and power angle will not change

The generator will feed more real power to bus bar and power angle will increase

The generator will feed more power to bus bar and power angle will decrease

The generator will feed more lagging KVAR to bus bar and power angle will not change

no voltage drops in resistance or leakage reactance

mmf required to maintain main flux is small

no core loss

all the above are correct

Core loss will increase and magnetizing current remain same

Core loss will remain same and magnetizing current will remain same

Core loss will decrease and magnetizing current will increase

Core loss will remain same and magnetizing current will decrease

Ground waves

Sky waves

Surface waves

Space waves

Discone

Folded dipole

Helical

Marconi

Conductivity

Permeability

Wavelength

Permittivity

Conductor always

Conductor or dielectric depending on field strength

Conductor or dielectric depending on frequency

Conductor or dielectric depending on the electric current density

Reduced to $$\frac{1}{n^2}$$ that of the original

Increased to $$n^2$$ that of the original

Reduced to $$\frac{1}{n}$$ that of the original

Increased to $$n$$ times that of the original

Leakage over the insulators

Leakage over the conductors

Leakage over the poles

Leakage between ground and conductors

Same as that of air

2 to 3 times more than air

10 to 20 times more than air

2 to 3 times less than air