Related Questions

In an RL circuit, the impedance is determined by both the resistance and the inductive reactance combined.
A True
B False
At series resonance, the inductive reactance and capacitive reactance are never equal.
A True
B False
In a parallel RLC circuit, the smaller reactance determines the net reactance of the circuit.
A True
B False
In a series RLC circuit, the larger reactance determines the net reactance of the circuit.
A True
B False
A capacitor and a resistor are connected in series to a sine wave generator. The frequency is set so that the capacitive reactance is equal to the resistance and, thus, an equal amount of voltage appears across each component. If the frequency is increased
A VR > VC
B VC > VR
C VR = VC
D VR and VC = 0
The total capacitive reactance of a parallel capacitor circuit is:
A equal to the sum of the individual capacitive-reactance values
B equal to the sum of the individual capacitance values
C equal to the source voltage divided by total current
D less than the capacitance value of the smallest capacitor
E None of the above
In order to get maximum power transfer from a capacitive source, the load must have an impedance that is the complex conjugate of the source impedance.
A True
B False
Capacitive reactance is more when
A Capacitance is less and frequency of supply is less
B Capacitance is less and frequency of supply is more
C Capacitance is more and frequency of supply is less
D Capacitance is more and frequency of supply is more
If A.C. voltage is applied to capacitive circuit, the alternating current can flow in the circuit because
A varying voltage produces the charging and dicharging currents
B of high peak value
C charging current can flow
D discharge current can flow
10 cm লম্বা ও 0.5 cm ব্যাসার্ধ বিশিষ্ট একটি তামা ও একটি লোহার তারকে জোড়া লাগিয়ে দৈর্ঘ্য 20 cm করা হল। জোড়া লাগানো তারটিকে বল প্রয়োগ করে লম্বা করা হল। লোহার ইয়ংয়ের গুণাঙ্ক তামার ইয়ংয়ের গুণাঙ্কের দুইগুণ হলে লোহার দৈর্ঘ্য বৃদ্ধি ও তামার দৈর্ঘ্য বৃদ্ধির অনুপাত কত? ( A steel and a brass wire, both having 10 cm length and 0.5 cm radius, are joined together making the total length of the combined wire 20 cm. The combined wire is stretched by applying a force. If the Young's modulus of steel is twice as much as that of brass, what will be the ratio of the extension of steel to the extension of brass?)
A 1 :8
B 1 : 6
C 1 : 4
D 1 : 2

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