Electric Circuits The capacitive reactance of an electric circuit is 50 Ohms. The frequency of supply becomes doubled. What is the new capacitive reactance? 100 Ohms. 200 Ohms. 25 Ohms. 50 Ohms. 100 Ohms. 200 Ohms. 25 Ohms. 50 Ohms. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Five cells are connected in series in a row and then four such rows are connected in parallel to Feed the current to a resistive load of 1.25Ω. Each cell has an emf of 1.5 V with internal resistance Of 0.2Ω. The current through the load will be 23.33 A 3.33 A 5 A 1 A 23.33 A 3.33 A 5 A 1 A ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits When a lossy capacitor with a dielectric of permittivity ε and conductivity σ operates at a frequency ω the loss tangent for the capacitor is given by ω σ/ε. σ ω ε. σ/ω ε. ω ε/σ. ω σ/ε. σ ω ε. σ/ω ε. ω ε/σ. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Time constant is the time taken for response to rise -------of maximum value? 100% 68.3% 90% 63.2% 100% 68.3% 90% 63.2% ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits If two point charges are denoted by + Q and - Q and distance between this charges is d, then the dipole moment P equal to Q / d2. Q × d. Q2 × d. Q2 / d. Q / d2. Q × d. Q2 × d. Q2 / d. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits If all the elements in a particular network are linear, then the superposition theorem would hold, when the excitation is AC only DC only Either AC or DC An Impulse AC only DC only Either AC or DC An Impulse ANSWER DOWNLOAD EXAMIANS APP