Homework Answers
in the given circuit
20 ,10 and 10 ohms are in parallel combination
if three resistors are in parallel combination 1/R = 1/R1+R2+1/R3
resultant of these three resistors = 1/R = 1/20+1/10+1/10
R = 4 ohm
here 2 and 4 ohms are in series
total resistance R tot = 2+4 = 6 ohm
from the ohms law
v = iR
i = 12/6 = 2 A
in a series combination current is same across the resistors
so current across 2 and 4 ohms are same
voltage across 4 ohm is = 2*4 = 8 V
in a parallel combination voltage is same across the resistors
current across 10 ohm resistor is 8/10 = 0.8 A
option c
Three resistors of values 2 Ω, 6 Ω and 12 Ω are connected across a 2.0-V...
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shown in Fig. 26-18. What is the total current I flowing this
circuit? 3.0 A 1.5 A 6.0 A 0.70 A 2.0 A
FIGURE 26-18 2Ω 6Ω 12Ω
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values were not given these are hw questions. Question 13 1 pts А B 6 V...
values were not given these are hw questions.
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Draw the molecules from the IUPAC names: a)(2S)-2bromo-4-methylhexane b)(R,E)-6-aminohept-2-en-4-one c)(1R,3R)-3-methylcyclopentane-1-ol d)(2S,3S)-2,3-dihydroxysuccinic and
Draw the molecules from the IUPAC names: a)(2S)-2bromo-4-methylhexane b)(R,E)-6-aminohept-2-en-4-one c)(1R,3R)-3-methylcyclopentane-1-ol d)(2S,3S)-2,3-dihydroxysuccinic and
If the resistors and batteries. are known in Fig.12, How many Kirchhoff voltage equati ons 37...
If the resistors and batteries. are known in Fig.12, How many Kirchhoff voltage equati ons 37 would be used to find the currents? a) 13 b) 11 c) 9 d) 6 e) 3 f) none ww Fig.12 38. The 1ight bulbs in Fig. 13 are identical in every Which one gives off the most light? way. a) A bi B c) C d) They're all the same bri ghtness Fig. 13
Three resistors of values 2 Ω,
6 Ω and 12 Ω are connected across a 2.0-V DC voltage source as
shown in Fig. 26-18. What is the total current I flowing this
circuit? 3.0 A 1.5 A 6.0 A 0.70 A 2.0 A
FIGURE 26-18 2Ω 6Ω 12Ω
V(V) A circuit with only one battery, but multiple resistors, has a current of 2.0 A flowing through it. The figure at right shows the potential as a function of position in the circuit, going in a clockwise direction, starting from the lower-left corner. a) (4 pts.) Draw a circuit diagram that is consistent with this graph. Position b) (1 pts.) How much power is dissipated by the battery?
(a) What is the magnitude of current i? (b) How much energy is dissipated by all four resistors in 2.85 min? 5. In the figure Ri-7.50 S2, R2=22.5 2, and the ideal battery has emf E= 13.1 V. ww R 6. In the figure the current in resistance 6 is i6= 1.36 A and the resistances are R1 R2=R3 1.82 2, R4 = 14.6 2, Rs= 8.85 2, and Re the ideal battery? 4.43 Q. What is the emf of...
11. [4 pts] A circuit consists of two resistors in parallel, Ri and R2, connected to a battery with emf of 12 V. The conventional current passing through the battery is 5 A. The conventional current through resistor R2 is 2 A. You may assume the connecting wires and the battery have negligible resistance. a) What is the resistance R1? B.4.0 Ω C. 2.4 Ω Answer D. 3.6 Ω E. 3.0 Ω A.6.0 Ω How much power is delivered by...
5. How much charge is transported by a steady current of 350mA in 8500 seconds? How many seconds does it take to transport 45C of charge at the rate of 15mA? How many joules of energy are used by a 60W light in 2.5 hour? How much energy does a 12-volt battery supply to a load which takes 100A for 6. 8. 15 seconds? 9. How many seconds are required to supply 20MJ of energy from a 12 V battery...
6. A current of 3.5 pA flows through a copper wire. The diameter of the wire is 30 mm. The number of charge carriers per unit volume is 1.7x10m. The electron drift speed is A) 4.6x1010 m/s B) 1.4x10 m/s C) 18x10 m/s D)5.7x10 m/s E) 1.4x10'm/'s 7· Three uniform cylindrical resistors are made of the same material and have the same length, but different diameters. They are connected in series as shown. We measure the voltage across point O...
values were not given these are hw questions.
Question 13 1 pts А B 6 V m switch open mu F Figure 6 How are resistors Rp and Rf connected to each other in Fig. 6? not connected Ο Ο Ο connected but neither series nor parallel series parallel Question 14 1 pts А B + 6 V switch open E F Figure 6 What is the equivalent resistance RDF in ohms of RD and RF in Fig. 6? Question...
3R MC 12 Two identical solenoids are connected to each other so that they carry the same current, and are inserted through two loops in an electrical circuit, as shown left diagram. The solenoids are oriented such that when you loolk from one end, the currents are circulating in opposite directions, as showin in the second diagram. For a period of time, the current flowing through the solenoids is changing in a steady linear manner: It) ~ t. During this...
If the resistors and batteries. are known in Fig.12, How many Kirchhoff voltage equati ons 37 would be used to find the currents? a) 13 b) 11 c) 9 d) 6 e) 3 f) none ww Fig.12 38. The 1ight bulbs in Fig. 13 are identical in every Which one gives off the most light? way. a) A bi B c) C d) They're all the same bri ghtness Fig. 13
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