Define capacitative current. How does a capacitor produce a current?
A 2000 microfarad capacitor, initially charged to 100 volts, is discharged by a steady current of 100 microamps. How long does it take to discharge the capacitor to 0volts?
A wire carries a current of 5.8 A. How far does this current produce a magnetic field of 5.7 x 10-8 T?
A 65-V generator supplies 3.3 kW of power. How much current does the generator produce?
How does increasing the capacitance affect the charge on the capacitor with a constant voltage? How does increasing the capacitance affect the voltage across the capacitor with a constant charge? How does a larger capacitance affect the glowing light bulb (in terms of its brightness and rate of dimming)
Can you show how many Ohms does this amplifier able to produce
with these current values components ?
Please don't copy other answers!
1 resistor is 1 ohm
+5.1V Speaker 2n3904 1N4148 220uF 1N4148 1k 2n3906 2v - peak-peak - 10kHz 47F 2n3904 10kHz
+5.1V Speaker 2n3904 1N4148 220uF 1N4148 1k 2n3906 2v - peak-peak - 10kHz 47F 2n3904 10kHz
Define Okun’s Law. How does it connect to real GDP, unemployment and opportunity cost. How is it connected to the business cycle?Define Okun’s Law. How does it connect to real GDP, unemployment and opportunity cost. How is it connected to the business cycle?
Part A: How much charge does a battery have to supply to a 6.00 μFμF capacitor to create a potential difference of 1.10 VV across its plates? Part B: How much energy is stored in the capacitor in this case? Part C: How much charge would the battery have to supply to store 1.30 JJ of energy in the capacitor? Part D: What would be the potential across the capacitor in that case?
set - Group! Q1. Consider a parallel-plate capacitor connected to a battery. a) How does the charge in this capacitor change if Potential difference is tripled (by varying the voltage of the battery). (1 mark) b) How the energy does stored change if the capacitance of the capacitor is doubled? Q2. Answer to the following questions by using the above capacitor combination circuit. The values of capacitors are C-18 uF, C2-6 uF C3=36 uF C4-18 uF and Supply voltage, V=72V...
(30 points) 4) A 10.0-uF capacitor is charged though a 50,000-2 resistor. (a)How long does it take the capacitor to reach 50% of full charge? (b) If the same capacitor is discharged through the same resistor, how long does it take the capacitor to reach 20 % of full charge?
Does dropping a magnet down a copper tube produce a current in the tube?Explain.