Magnetic Flux

A square coil of $0.01 {\mathrm{m}}^2$ area is placed perpendicular to the uniform magnetic field of intensity ${10}^3 {\mathrm{Wbm}}^{-2}$. The magnetic flux (in weber) linked with the coil is

A six-pole generator with fixed field excitation develops an emf of $100 \mathrm{V}$, when operating at $1500 \mathrm{rpm}$. At what speed (in rpm) must it rotate to develop an emf of $120 \mathrm{V}$?

Which activity does the sale of a patent fall under in the cash flow statement?

Which of the following is a major center for the iron and steel industry in India?

Which of the following is a measure for mineral conservation?

Khetri mines in Rajasthan are famous for which mineral?

In which of the following states is the Ratnagiri district, famous for its deposits of iron ore, located?

What is the term used for the Sufi practice of singing devotional songs?

Which Sufi order was known for its emphasis on love and devotion towards God, influencing the religious condition of North India?

Which of the following industries is based on the input or raw material of iron ore?

Which country is the largest producer of iron and steel?

Which mineral is primarily extracted in the Kiruna mine in Sweden?

Which kingdom was known for its extensive use of iron resources?

Which dynasty succeeded the Mauryan Empire and introduced new notions of kingship?

The back emf in a DC motor is maximum when

A six-pole generator with fixed field excitation develops an emf of $100 \mathrm{V}$, when operating at $1500 \mathrm{rpm}$. At what speed must it rotate to develop an emf of $120 \mathrm{V}$?