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Q7. A. On what factors does the capacitance of a parallel-plate capacitor depend? B. A tuned circuit consisting of a coil having an inductance of 200µ H and a resistance of 20Ω in parallel with a variable capacitor is connected in series with a resistor of 8000Ω across a 60 V supply having a frequency of 1 MHz. calculate A. The value of C to give resonance; B. The dynamic impedance and the Q factor of the tuned circuit; C. The current in each branch