A cylindrical wire is stretched to increase its length by 10%. Calculate the percentage increase in its resistance.
what is wattless current?
what is the dimensional formulas of mutual inductance.
Two bodies of masses m1 and m2 are connected by a light string which passes over a frictionless massless pulley . If the pulley is moving upward with uniform acceleration g/2 , then tension in the string is - 1) 3 m1 m2 g / m1 + m2 ..............2)m1 + m2 g / 4m1 m2 ..........3)2 m1 m2 g / m1 + m2 ..............4)m1 m2 g / m1 + m2 ..............
what is meant by sharpness of resonance?
define watt-less current?
project to investigate the relation between the ratio of
1)output & input voltage
2)no. of turns in secondary & primary coil of a self designed transformer
why is 220v ac more dangerous then 22ov dc?
plz answer this question :- A resistor of 200 ohm and a capacitor of 15 micro F are connected in series to a 220V, 50 Hz a.c. source . Calculate the current in the circuit and the r.m.s. voltage across the resistor and capacitor.
what is power factor in an a.c. circuit?
A cylindrical wire is stretched to increase its length by 10%. Calculate the percentage increase in its resistance.
what is wattless current?
what is the dimensional formulas of mutual inductance.
Two bodies of masses m1 and m2 are connected by a light string which passes over a frictionless massless pulley . If the pulley is moving upward with uniform acceleration g/2 , then tension in the string is - 1) 3 m1 m2 g / m1 + m2 ..............2)m1 + m2 g / 4m1 m2 ..........3)2 m1 m2 g / m1 + m2 ..............4)m1 m2 g / m1 + m2 ..............
what is meant by sharpness of resonance?
define watt-less current?
by I = (2 + 3 sin ωt) A, then the effective value of
resulting current in the circuit is
(1)(17/2)1/2 ampere
(2) (2/17)1/2ampere
(3)(3/(2)1/2)1/2ampere
(4) 3(2)1/2ampere
project to investigate the relation between the ratio of
1)output & input voltage
2)no. of turns in secondary & primary coil of a self designed transformer
why is 220v ac more dangerous then 22ov dc?
plz answer this question :- A resistor of 200 ohm and a capacitor of 15 micro F are connected in series to a 220V, 50 Hz a.c. source . Calculate the current in the circuit and the r.m.s. voltage across the resistor and capacitor.
what is power factor in an a.c. circuit?