Consider a parallel plate capacitor. each plate is rectangular and of dimensions 3 mm by 5 mm. a vacuum exists between the plates of the capacitor. (a) if the charge on a plate is 5.2x105 c and the voltage measured across the capacitor plates is 3 v. (i) what is the capacitance of the capacitor? (ii) what is the distance between the plates? (ii) what is the energy stored in the capacitor? (b) if the capacitor used in part a is used in a circuit where the current varies as i(t) 2.1cos 200t ma difference across the capacitor as a function of time? (ii) what is the energy stored in the capacitor as a function of time? 4. and the capacitor is uncharged at i) what is the potential difference across the capacitor as a function of time? (ii) what is the energy stored in the capacitor as a function of time.

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation:

which piece of furniture will have the most inertia and give the furniture movers the most difficulty in moving?  

answer

a 75kg dining table