Question
In a circle, two chords of lengths p and q subtend the
angles of 60° and 90° at the center respectively. Which of the following is correct in this scenario?Solution
Let the radius of the circle =r Length of chord p =r                  … (1)          (all angle is 60) Length of chord q = r/√2   … (2)           chord y is making an isosceles right triangle From EQ (1) and (2) … q= x√2 =√2x q= √2x.
Two equal charges are placed at a distance d. At what point along the line joining them is the electric field zero?
According to Kepler’s third law of planetary motion, the square of the orbital period of a planet is proportional to the __________.
What is the function of a fuse in an electric circuit? Â
A machine does 600 J of work in 2 minutes. Find its power. Â
In a long solenoid of 200 turns/cm carrying a current i, the magnetic field at center is 6.28×10-2 T. If a second solenoid with 100 turns/c...
In AC circuits, AC meters measure –
What is the potential difference across a 5 Ω resistor when a current of 2 A flows through it?
The force of attraction between two masses is called — Â
Two capacitors, 2 µF and 3 µF, are charged separately to 100 V and 50 V respectively, and then connected positive to positive, negative to negative. F...
Relevant for Exams:
