Pre Lab 6

The conductance of a 9230 resistance is a) 1.08 * 10-3 mho b) 1.08 * 10-4 mho c) 1.02 * 10-3 mho d) 1.02 * 104 mho

Three 47.1 ohm resistors and three 17.1 H inductors are all in series with a 37 volt battery and a switch. The switch is placed in position A at time t = 0 and switched to position B at time t = 743 ms. Find the voltage across each of the resistors at time t = 1.17 seconds. Owo DO A R R in in ete SW éte لفظو

An ammeter has been designed by indirect method with current ranges 1A, and 5A, if PMMC meter have internal resistance of 50 (2 and half scale current of 0.5 mA. Ra and Rb will be --- ohm Ra= 0.05005 , Rb=0.01001 Ra = 0.04004 , Rb = 0.01001 Ra= 0.05005 Rb= 0.04004

Two resistors RA and RB are connected in series across a 120-V source. When a 30,000-ohm voltmeter is connected across RA and then across RB, the instrument deflection is 48 volts in each case. What are the ohmic values of the resistors?

I need help understanding this question, what does this question is talking about

Three resistance 14. 5 Q, 25. 5 Q and 60 Q are connected in series across 200 V. What will be the voltage drop across 14. 5 Q (a) 29 V (b) 13. 5 V (c) 14 V (d) 18 V

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If the load resistor of Figure 7-1B is disconnected the current through the zener diode is approximately: (a) 0mA (b) 10mA (c) 20mA (d) 40mA ( )

VT= 10 V D R₁ 150 Ω R₂ 15 $2 R3 1052 B Le V

Q1 The magnetic circuit of Figure Q1(a) consists of rings of magnetic material in a stack of height h. The rings have inner radius R¡ = 3.2 cm, outer radius R, = 9.2 cm, stack height, h = 2.0 cm, air gap, g = 0.05 cm and the number of turns, N = 200 turns. If the fringing in the air gap increases the effective cross-sectional area of the air gap by 5% and the relative permeability µ, = 4000, determine: (а) The mean core length l, and the core cross-sectional area A. (b) The reluctance of the core R. and reluctance of the air gap R,. (c) The current i that required to produce a flux density of Bg = 1.25 T at an air gap. (d) If the current i is double from Q1(iii), determine the flux density in the air gap.

In the figure the current in resistance 6 is i6 = 1.33 A and the resistances are R₁ = R₂ = R3 = 1.56 02, R4 = 14.7 Q, R5 = 7.74 Q2, and R6 = 3.81 Q. What is the emf of the ideal battery? 80 R₁ Number i www R₂ www R₂ Units www R₁ www R₂ i6 www R6

Write down the steps on how to Series Resistors Voltage Division

Three resistors of 5, 10, and 15 ohms respectively are connected in series with a 24V source voltage. What is the current in the 5-ohms resistance? a.0.2 A  b. 08 Ac. 0.6 A  d. 0.5 A

We want to make a resistivity measurement. How should we connect the probes of the multimeter? Drag the connector images to the correct locations and "Not Connected" images to the rest. SLIDE SWITCH: LEFT- OFF MIDDLE- DC VVOLTS DC mA NUMERICAL VALUE OF VOLTS OR MA OR OHMS DISPLAYED HERE 0.00 OHMS FIGHT - AC VOLTS AC mA OFFOO AC DC-n DM 8010 MOVE ROTARY SWITCH TO THIS AREA TO READ OHMS (SELECT RANGE) 1000 200 20 MOVE ROTARY SWITCH TO THIS AREA TO READ VOLTS (SELECT RANGE) 20 200 2K 20K. 200 200K 2M 20M MOVE ROTARY SWITCH TO THIS AREA TO READ mA (SELECT RANGE) *20u 200u 200m 20m 10A mA COM PROBES Windows'u Etkinleştir Windows'u etkinleştirmek için Ayarlar'a gidin NOT CONNECTED

Question 12) attatched Delmars electricity 7th edition.

If PMMC meter have internal resistance of 1002 and full-scale range of 1mA. Assume we wish to increase the meter range to 2A. the value of shunt resistor will be: OR_sh=0.00500 OR_sh= 0.00010 OR_sh=0.11111 0

What is the greatest voltage that can be applied across a -W, 2.7-MQ resistor without causing it to overheat?

1, between points (a and b) en's equivalent voltage and seguivalent resistance are

A 120 V source is applied across three equal resistances in series. How much is each IR drop?

Two (2) 115 V incandescent lamps A & B are connected in series across a 230 V source. If lamp A is rated 75 watts and lamp B is rated 50 watts. Determine the current drawn by the series connection.

When you connect a voltmeter to read a dc voltage   a. polarity is not important b. connect the voltmeter in series with the circuit c. connect the voltmeter across the component d. connect the common meter lead to the most positive point in the circuit

Two lamps incandescent and fluorescent are connected in series. Incandescent is rated 50 W at 100 V while fluorescent is rated at 100 W at 100 V also. The two lamps are to be connected in series across a 200 V source. What resistance must be connected across incandescent so that each lamp will operate properly?

A meter has full-scale deflection of 90° at a current of 1 A. The response of the meter is square-law. Assuming spring control, the current for a deflection 45° will be a) 0.25 A c) 0.67 A b) 0.50 A d) 0.707 A lo

In the figure below, explain in what situation ammeter A reading will be nonzero.

QUESTION 2 (a) A multirange ammeter needs to be designed with four measurement ranges: PIS Come to wha +6-172917209 Range 1: 0 – 1 mA Range 2: 0 – 20 mA Range 3: 0 – 50 mA Range 4: 0 – 100 mA foC A D’Arsonval meter movement with an internal resistance of 500 SN and full scale Ray current of 100 µA is used. i) Design each resistor values for the multirange ammeter using the principle of Aryton Shunt. wak ii) If you were to construct this ammeter, how would you arrange the resistors? Sketch a schematic diagram to show your design. mongy (b) multirange DC voltmeter can be designed either with the multiplier resistors connected in shunts or in series. bwena D'Arsonval meter movement with Im = 100 µA and Rm 1.4 kQ is to be converted into a multirange DC voltmeter for ranges of 5 V, 10 V, 20 V and 50 V. Calculate the multiplier resistor values for both types of design. ii) Based on the calculation results, give your opinion on which design is better and provide your reason.

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