A resistor R is connected to a voltage source VS having an internal resistance RS. A voltmeter of resistance Rm is connected across the terminals of the resistor R. The voltmeter will read a voltage of
A. $$\frac{{{V_s}{R_m}}}{{{R_s}R + {R_s}{R_m} + R{R_m}}}$$
B. $$\frac{{{V_s}R}}{{R + {R_s}}}$$
C. $$\frac{{{V_s}{R_m}}}{{R{R_s} + {R_m}}}$$
D. $$\frac{{{V_s}R{R_m}}}{{{R_s}R + {R_s}{R_m} + R{R_m}}}$$
Answer: Option D
This Question Belongs to Electronics And Communications Engineering >> Network Theory And Analysis
A. Negative
B. Positive
C. Determined by battery e.m.f.
D. Zero
The number of independent equations to solve a network is equal to
A. The number of chords
B. The number of branches
C. Sum of the number of branches and chords
D. Sum of number of branches, chords and nodes
A closed path made by several branches of the network is known as
A. Branch
B. Loop
C. Circuit
D. Junction
Which of the following is not a nonlinear element ?
A. Gas diode
B. Heater coil
C. Tunnel diode
D. Electric arc
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