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- Calculate the magnitude of the voltage V2 in the following circuit E-21 V 12 a- 14V b. -14 V C. 28 V 7- A sinusoidal signal has a period of 40 ms. What is its frequency? a. 50k㎐b, 25 kHz C.50 ㎐ ④25㎐ 8- The voltage across a component is measured as 80 V r.m.s. and current through it is 4 A r.m.s. If the current leads the voltage by 2 what is the apparent power in the component? a- 109 VA b. 116 VA C. 301 VA d. 320 VA 9- If Current and Voltage are 90 Degree Out of Phase, Then the Power will be a- Infinite b. Maximum C. Minimum d. Zero 10 The current I in the circuit of Figure is: (a) 0.8 A (b) 0.2 A (c) 0.2 A (d) 0.8 A 4S2 6Ω
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