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Q = Qoe^(-t/RC)
(i) State the significance of Qo
(ii) Use this equation to obtain an expression for the half-life T1/2 of the discharge process.
(i) Calculate the PD across the terminals of each capacitor
(ii) Calculate the initial and final energies stored in the capacitors hence explain why there is a loss in energy?
For the circuit shown in fig. Both voltmeter and ammeter are idealized, the battery has no appreciable internal resistance, and the ammeter reads 5 A.
a. What does the voltmeter V read?.
b. What is the total current I of the circuit?.
c. What is the total voltage of the battery?
d. What is the total resistance R of the circuit?
25.022
A
15.02
MW
45.012
15.022
10.022
35.022 V = ?
Compared to the number of free electrons in a conductor, the number of free electrons in an insulator of the same volume is less, greater or same
An installation requires 35KW and operates at a power factor of 0.45 from a 400v 3 phase supply what is the current taken by installation at the normal power factor 0.45
current taken at power factor 0.75
current taken at power factor of 0.9
A step down transformer has 3200 windings in the primary coil and a primary voltage of 100 V. determine the number of windings in the secondary coil if the secondary voltage is 45 V.
Explain the impedence in LCR circuit.
