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Using a 1-mA, 100-O d' Arsonval movement, design a multirange voltmeter having scales of 5 V, 50 V, and 500 V.
What current sensitivity would you need if the meter were to have the same internal resistance on the same voltage scale?
Find the resistance required for full-scale, 3/4-scale, 1/2-scale, and 1/4-scale deflection.
Find the magnitude and direction of the currents I, I1, I2, and I3 for the network of Fig.
Which elements of the given networks have the same current (series) or voltage (parallel)?
Using values given in parts (e) and (f), find the power delivered by the battery E and dissipated by the resistors R1 and R2.
Find the currents I and I6. Find the power delivered to the 6-kO resistor.
For the series-parallel network of Fig. Find the current I. Find the currents I3 and I9.
Determine the dc levels for the transistor network of Fig. using the fact that VBE 0.7 V, VE = 2 V, and IC = IE.
Determine Is by finding the current through each element and then applying Kirchhoff's current law.
Determine the current through each branch using simply the ratio of parallel resistor values.
Determine the current I4 and calculate the ratio I1/I4. How does the ratio compare to the result of part-c ?
If the 2.2-kO resistor is short circuited, what is the new value of VL?
Determine the reading of a DMM having an internal resistance of 11 MO when used to measure V2.
Referring to the network of Fig., is Va = 8.8 V the correct reading for the given configuration?
If the voltage Va is 6 V rather than 1 V, try to explain what is wrong about the network construction.
measured by a VOM with an internal resistance of 200 kO as R2 varies from 10 kO to 200 kO in increments of 10 kO.
Which elements are in parallel? Which elements are in series?
Write a program to tabulate the current and power to the resistor RL of the network of Fig. for a range of values for RL from 1 O to 20 O.
If the resistors are available with wattage ratings of 1/2, 1, 2, and 50 W, what is the minimum wattage rating for each resistor?
Find the power dissipated by each resistor, and note whether the power delivered is equal to the power dissipated.
If one bulb burns out (that is, the filament opens), what is the effect on the remaining bulbs?
Determine the power supplied by the 120-V source. How does it compare to the total power of the load.
For the network of Fig. Calculate the power dissipated by the 4-O resistor.
For the network of Fig. Find the current I. Determine the voltage V.