ETO ETO Exam papers 📅 Nov 2024

Exam Question

(a) On what factors does the capacitance of a parallel-plate capacitor depend? (6)

(b) A tuned circuit consisting of a coil having an inductance of 200µH and a resistance of 20 ohms in parallel with a capacitor is connected in series with a resistor of 8000 ohms across a 60V supply having a frequency of 1MHz, calculate: (10)

(a) The value of C to give resonance.

(b) The dynamic impedance and the Q factor of the tuned circuit.

Reference Answer

(a) The capacitance of a parallel-plate capacitor depends on three main factors:
Area of the plates (A):
A larger plate area results in a higher capacitance. This is because a larger area allows for more charge to be stored at a given voltage.
$$C\:\alpha\:A$$

Full answer on MeoMock — surveyor-grade reference answers for 7,000+ written exam questions.

View plans Browse library

← Browse more questions

Prepare on Android — MeoMock on Google Play