Electric Circuits Answers

If the Mica sheet is removed and the plates are moved 1.00 mm farther from each other,

what will be the voltage between the plates, and how much work will it take to move the

plates apart?

What is the resistance of a copper wire with a length of 40cm and a cross-sectional area of 0.016mm² if the resistivity of the material is 1.7x10 ^-8Ω.m? 

electrical engineering questions and answers / a parallel...

Question: A parallel plate capacitor has an area of 5.00 cm2 and a capacitance of 3.50 pF. The capacitor is...

A parallel plate capacitor has an area of 5.00 cm2 and a capacitance of 3.50 pF. The capacitor is connected to a 12.0 V battery. After the capacitor is completely charged up, the battery is removed a. What must be the separation of the plates and how much energy is stored in the electric field between the plates? b. If a sheet of Mica with εr=3.5 is placed between the plates, how will the voltage across the plates and the charge density on the plates change? c. If the sheet of Mica has an area of 3.00 cm 2 so that it does not cover the whole area of the plates, what would be the effective capacitance of this arrangement? d. If the Mica sheet is removed and the plates are moved 1.00 mm farther from each other, what will be the voltage between the plates, and how much work will it take to move the plates apart?

Two coils A and B are connected in series across a 110V, 60Hz supply. The resistance of coil A is 2  and inductance of coil B is 0.004H. If the input from the supply is 2.4kW and 1.8kVAR, find the inductance of coil A and resistance of coil B. Also calculate the voltage across each coil.

A parallel plate capacitor has an area of 5.00 cm 2 and a capacitance of 3.50 pF. The capacitor is connected to a 12.0 V battery. After the capacitor is completely charged up, the battery is removed

a. What must be the separation of the plates and how much energy is stored in the electric field between the plates?

b. If a sheet of Mica with εr=3.5 is placed between the plates, how will the voltage across the plates and the charge density on the plates change?

c. If the sheet of Mica has an area of 3.00 cm 2 so that it does not cover the whole area of the plates, what would be the effective capacitance of this arrangement?

d. If the Mica sheet is removed and the plates are moved 1.00 mm farther from each other, what will be the voltage between the plates, and how much work will it take to move the plates apart?

 A small positively-charged particle that has a charge of 1.20x10^-4 C came into the vicinity of a large positively-charged particle that created an electric force upon the test charge with an amount of 23.0x10 N. What is the Electric Field Strength exerted by the point charge then?

a 300 v battery is connected across terminals TO and THE current will then begin to flow in the network in accordance with established laws of electricity amount of the circuit flowing through each resistor in the circuit can accordingly be determined. study the current and then establish value of current flowing through resistor with the lowest current

 A 12.6V battery forces 5 coulombs through a load. How much energy does the load

convert?

A 300v battery is connected across terminal t1 and t2 current will then begin to flow in the network in accordance with established laws of electricity flow.Amount of current flowing through each resistors in the circuit can accordingly the determined, strictly the circuit with 300v connected across t1 and t2 and then establish value of current flowing through resistors with lowest current.

An electric hot plate has a power rating of 150w and a current draw of 10A,what is the resistance of the hot plate