he molar specific heats of an ideal gas at constant pressure and volume are denoted by Cp and Cv, respectively. If γ=Cp/Cv and R is the universal gas constant, then Cv is equal to

Question:

Options :

(a) γR
(b) 1+γ/1-γ
(c) R/(γ-1)
(d) (γ-1)/R

Answer :

Answer Steps :

Step 1:

Step 2:

Step 3:

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An alternating voltage source is connected in series with a resistance R and an inductance L. If the potential drop across the resistance is 200 V and across the inductance is 150 V, then the applied voltage is:

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An alternating voltage source is connected in series with a resistance R and an inductance L. If the potential drop across the resistance is 200 V and across the inductance is 150 V, then the applied voltage is:

In an a. c. circuit the instantaneous current and e.m.f. are represented as: I = I0 sin(ωt – π/6) and E = E0 sin(ωt + π /3) respectively. The voltage leads the current by

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