The electrical analog of mass in electricity is _.
Correct answer: B. Inductance
- A. Capacitance
- B. Inductance
- C. Charge
- D. Resistance
Explanation
The correct answer is Inductance. In the context of electrical systems, inductance is analogous to mass because both properties determine how a system reacts to change. In mechanical systems, mass resists changes in velocity, while in electrical systems, inductance resists changes in current. The other options, while related to electrical properties, are not directly comparable to the concept of mass. Capacitance relates to the ability to store charge, charge is a fundamental property causing electrical interactions, and resistance is akin to friction, not mass.
This question appeared on the UHS MDCAT 2010 paper, which you can sit online with every answer explained.
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About AC Through Resistor, Capacitor and Inductor
Alternating current through a resistor, capacitor and inductor involves phase relationships between voltage and current, reactance, impedance and energy transfer. A resistor keeps voltage and current in phase, while a capacitor and inductor produce opposite phase shifts, a distinction used in circuit diagrams and numerical calculations.
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