What should be the length of an ideal solenoid consisting of 1250 turns for
the magnetic field in its interior to be 0.025 T?
A current of 2.0 A is flowing
through the solenoid.
A 2.0 centimeter tall object id placed 30.0 centimeters from a concave mirror. The focal length of the mirror is 10.0 centimeters. (a) where is thr image seen? (b) how tall is the image?
What happens to the (1) resistance and (2) current flow through a conductor if:
a. Resistivity increases
b. Conductivity increases
c. Decrease in temperature
d. Increase in length
What is the resistance of a 150m wire made of silver with cross sectional area of 0.60mm² ?
When turning at 1500 rev/min, a certain generator produces 100.0v. What must be its frequency in rev/min if it is to produce 120.0v
A disk with a diameter of 30 cm speeds up from 20 rad/s to 40 rad/s in 20s. (a) How many revolutions will the disk go through during that time period? (b.) What is the average linear acceleration of the disk?
Find the total capacitance for three capacitors connected in series, given their
individualcapacitances are 2.000nF, 5.000pF, and 8.000 μF.
An RC circuit have a 9V source and lies at 54seconds of the time constant. Then find the voltage across a capacitor after 153.6 seconds of charging.
A ball is tossed straight up at 24m/s. Estimate its velocity at 1s interval, and when will it reach its original starting poin
A subwoofer needs a household voltage of 110A to push a current of 5.5A through its coil. What is the resistance of the subwoofer?