16. Spring constant in forcevoltage analogy is analogous to :
(a) Capacitance
(b) Reciprocal of capacitance
(c) Current
(d) Resistance
Answer : (b)
Explanation :
Analogous Quantities :
Electrical Quantity 
Mechanical Analog I  Mechanical Analog II 
(ForceCurrent)  (ForceVoltage)  
Voltage, e  Velocity, v  Force, f 
Current, i  Force, f  Velocity, v 
Resistance, R  Lubricity, 1/B (Inverse friction) 
Friction, B 
Capacitance, C  Mass, M  Compliance, 1/K (Inverse spring constant) 
Inductance, L  Compliance, 1/K (Inverse spring constant) 
Mass, M 
Transformer, N1:N2  Lever, L1:L2  Lever, L1:L2 
ForceCurrent Analogy :
1. Mass (M) is analogous to Capacitor (C).
2. Force is analogous to current I.
3. Displacement (x) is analogous to flux (ψ).
4. Coefficient of friction (B) is analogous to resistance 1/ R and
5. Spring constant K is analogous to inverse of the inductor (L).
ForceVoltage Analogy :
1. Mass (M) is analogous to inductance (L).
2. Force is analogous to voltage V.
3. Displacement (x) is analogous to charge (Q).
4. Coefficient of friction (B) is analogous to resistance R and
5. Spring constant is analogous to inverse of the capacitor (C).
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