Electric Circuits Answers

Suppose in an experiment, data is collected of the variation of current with
resistance R. Next a plot of R vs I
-1 is made. How does one determine the
value of V from that graph? (Explain your answer using appropriate
expression.)

A zener diode voltage regulator operated in the range 120V -180V produces a constant supply of 110V and 250mA to the load if the maximum current is equally shared between the load and zener diode then the value of load resistance and series resistance
Rl= 440 ohm , RS= 140 ohm

In a meter bridge experiment, when a nichrome wire is in the right gap, the balancing length is 60cm. When the nichrome wire is uniformly stretched to increase its length by 20% and again connected in the right gap, the new balancing length is nearly.
Ans 51cm

Depict the digital signal 1011001110 in
(i) Manchester code and
(ii) bipolar RZ format.

Explain, how IC555 timer can be used for recovering a pulse width modulated signal from pulse position modulated signal?

A metal has Er=9, wo=7×10^-15 rad s^-1, v=2×10^12 s. Calculate the skin depth for microwave of 4 cm vacuum wavelength

State with reasons whether the following statements are True or False.
1) Blue tooth technology is useful for mobile phones only.

State with reasons whether the following statements are True or False.
1) Bus topology is the most rugged topology.

How do you draw and label an equivalent resistance circuit with voltage source

State with reasons whether the following statements are True or False.
i) Uplink frequency in satellite communication is higher than downlink frequency.