Point +4 on the complex plane is 4 units left of the origin on the real axis 4 units below the origin on the j axis 4 units above the origin on the j axis 4 units right of the origin on the real axis TRUE ANSWER : ? YOUR ANSWER : ?
In a parallel RC circuit, there is 100 mA through the resistive branch and 100 mA through the capacitive branch. The total rms current is 282 mA 200 mA 100 mA 141 mA TRUE ANSWER : ? YOUR ANSWER : ?
A 470 resistor and a 0.2 F capacitor are in parallel across a 2.5 kHz ac source. The admittance, Y, in rectangular form, is 3.14 mS + j2.12 mS 2.12 mS + j3.14 mS 318.3 212 TRUE ANSWER : ? YOUR ANSWER : ?
A 47Ω resistor and a capacitor with a capacitive reactance of 120 are in series across an ac source. What is the circuit impedance, Z? 12.9Ω 73Ω 167Ω 129Ω TRUE ANSWER : ? YOUR ANSWER : ?
In a series RC circuit, when the frequency and the resistance are halved, the impedance doubles cannot be determined without values is halved is reduced to one-fourth TRUE ANSWER : ? YOUR ANSWER : ?
What is the value of the hypotenuse of a right triangle whose sides are 12 and 18? 4.24 2.16 3.46 21.63 TRUE ANSWER : ? YOUR ANSWER : ?
A positive angle of 30° is equivalent to a negative angle of –60° –330° –180° –30° TRUE ANSWER : ? YOUR ANSWER : ?
A 12 kΩ resistor is in series with a 0.02 μF capacitor across a 1.2 kHz ac source. If the current is expressed in polar form as I = 0.3 angle 0° mA, what is the source voltage expressed in polar form? 0.411 V 4.11 V 411.3 V 45.6 V TRUE ANSWER : ? YOUR ANSWER : ?
The complex number 40 angle 55° is equivalent to 40 + j40 55 + j55 22.94 + j32.76 45.88 + j65.52 TRUE ANSWER : ? YOUR ANSWER : ?
In the complex plane, the number 4 + j3 is located in the fourth quadrant second quadrant third quadrant first quadrant TRUE ANSWER : ? YOUR ANSWER : ?