A young infant may be feeding entirely on mother’s milk, which is white in colour but the stools, which the infant passes out is quite yellowish. What is this yellow colour due to?
Epithelial cells of the intestine involved in food absorption have on their surface
Epithelial cells of the intestine involved in food absorption have on their surface Read More »
A DC Motor is driving a constant load torque having armature resistance of 0.15 Ω and armature current of 0.25 A having connected to a voltage of 230 V.
In DC compound Motor the shunt field and series field winding is made up of _________ & ____________ respectively
Q. A 240 V, dc shunt motor draws 15 A while supplying the rated load at a speed of 80 rad/s. The armature resistance is 0.5 Ω and the field winding resistance is 80 Ω. The external resistance to be added in the armature circuit to limit the armature current to 125% of its rated value is
A 240 V, dc shunt motor draws 15 A while supplying the rated load at a speed of 80 rad/s Read More »
Q. A 240v dc shunt motor with an armature resistance of 0.5 has a full load current of 40A. Find out the ratio of the stalling torque to the full load torque when a resistance of 1 ohm is connected in series with the armature
A 240v dc shunt motor with an armature resistance of 0.5 has a full load current of 40A Read More »
If the applied voltage of a DC motor is 230 V, then back emf, for maximum power developed is
A d.c. shunt motor runs at 500 r.p.m. at 220 V. A resistance of 4.5 Ω is added in series with the armature for speed control
Two series motors are mechanically coupled. One machine is run as a motor and the other as a generator. The iron and friction losses of the machines will be identical when
