Physics, 16.10.2019 02:10 gracekerleyy
Three capacitors having capacitances of 8.40, 8.40, and 4.20 μfμf, respectively, are connected in series across a 36.0-v potential difference. (a) what is the charge on the 4.20-μf4.20-μf capacitor? (b) the capacitors are disconnected from the potential difference without allowing them to discharge. they are then reconnected in parallel with each other with the positively charged plates connected together. what is the voltage across each capacitor in the parallel combination?
Answers: 2
Physics, 22.06.2019 06:00
The magnetic field inside a superconducting solenoid is 4.50 t. the solenoid has an inner diameter of 6.20 cm and a length of 26.0 cm. determine (a) the magnetic energy density in the field and (b) the energy stored in the magnetic field within the solenoid.
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Physics, 22.06.2019 16:50
Aresistor with an unknown resistance is connected in parallel to a 9 ω resistor. when both resistors are connected in parallel to an emf source of 21 v, the current through the unknown resistor is measured with an ammeter to be 4 a. what is the resistance of the unknown resistor? answer in units of ω.
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Physics, 22.06.2019 17:30
You can watch static electricity in action by rubbing an inflated balloon against your hair. your hair will actually stand on its end! it does this because each hair becomes charged, and they all repel one another.
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Three capacitors having capacitances of 8.40, 8.40, and 4.20 μfμf, respectively, are connected in se...
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