t = 0 10 μF) VM Figure P4.5

A 500 nF capacitor is connected in series with a 100 kohm resistor and the circuit is connected to a 50V, d.c. supply. Calculate the initial value of current flowing, the value of current 150 ms after connection, the value of capacitor voltage 80 ms after connection, and the time after connection when the resistor voltage is 35 V.

I. SOLVE THE FOLLONING PROBLENS : A COPPER WIRE OF 0,3 Mm RAAUS HAS A LEN ETH OF 1. JOM- IF THE RESISTIVITY of cOpPER IS 1-7 x0 WHAT WOULD BE THE RESISTANOE OF THE WIRE? OF A 100m WIRE IS 1035 mm AND 3.7 OHMS. WHAT 2. THE DIAMETER THE REISTANCE IS IS THE CONDUCTIVITY 3. WHAT WILL BE THE VALUE OF A CAPACITOR WHEN IT HAS A CAPACITIVE REACTANCE OF 300R ANP to A 6o HZ. SUPPLY? IN FARADS IS CONNECTED 4. WHAT Is THE VALUE OF THE RESISTOR WITH THE FOLLOWING COLORS ? A. BROWN, BLACK, GOLD, REP B. BLUE YELON BROWN, SILVER PED, SILVER, BROWN, VIOET C. 5. AND t WHEN V 220V AND R= 50n WHEN I = 45 A WHEN V = 120V FIND V ANO R 80n AND AND E= 11A-

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For the circuit shown in Figure (4.a): i) Find the voltage across the capacitor in polar form. ii) Draw the phasor diagram relationship of Vc and Vs. iii) Is this circuit pre-dominantly inductive or capacitive? Why? R1=1ko X = 5000 Vs= 50 [0 R2=1ko X = 5000 Figure 4.a

A battery is used to charge a capacitor through a resistor as shown in the following figure. After the switch is closed the energy supplied by the batteryis E. Find the Joule heat produced in the resistor and the energy which is stored in the capacitor.

The voltage across and the current through acapacitor are shown in Figure P4.21. Determine thevalue of the capacitance.