Reference no: EM13957290
1. Find the resistance of a light bulb that is connected to a 120-volt line and has a current of 0.5 amps flowing through it.
2. Calculate the electrical power of a lamp that carries 2 amps of current at 120 volts.
3. A heater uses 20 amps when connected to a 100-volt line. If the electric power costs 10 cents per kilowatt hour, what is the cost of running the heater for 10 hours?
4. The current through two identical light bulbs connected in a series is 0.25 amps. The voltage across both bulbs is 100 volts. Find the resistance of a single light bulb.
5. What is the difference between series and parallel circuits? Specify in words and algebraic formula, if possible, the relationships between current, voltage, and resistance in each type of circuit.
6. Define the following terms:
a. Magnetic field
b. Electromagnet
c. Magnetic poles
d. Magnetic force
7. Describe in detail the effects of a magnetic field on a current-carrying wire.
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Write a program that displays all three digit
: Write a program that displays all three digit numbers: abc, that if subtracted by cba will deliver a number that contains the same digits: a, b, c, but in a different order.
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Denote by p(m) the probability that montreal wins the cup
: Denote by P(M) the probability that Montreal wins the Cup. This is also the conditional probability that they win the Cup, given that the first round was inconclusive. Use this insight to set up and solve an equation for P(M).
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Find the future values of these ordinary annuities
: Your client is 21 years old; and she wants to begin saving for retirement, with the first payment to come one year from now. She can save $6,000 per year; and you advise her to invest it in the stock market, which you expect to provide an average ..
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Shoppingbay is an online auction service
: 1. ShoppingBay is an online auction service that requires several reports. Data for each auctioned item includes an ID number, itemdescription, length of auction in days, and minimum required bid. Designed a flowchart or psuedocode for the followin..
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What is the difference between series and parallel circuits
: What is the difference between series and parallel circuits? Specify in words and algebraic formula, if possible, the relationships between current, voltage, and resistance in each type of circuit.
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Is the object located at the position of the visual image
: A transformer with 300 loops in primary coil is connected to a 120-V source. How many turns are required, in the secondary coil, to provide an output of 240V?
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Security principles paper
: Introduction to Information Systems Security Security Principles Paper
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Why will some numbers come up more frequently than others
: Once these percentages have been calculated, how might the mean value of the all the numbers thrown be determined?
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Find temperature coefficient of resistance iron used in wire
: An iron wire has a resistance of 0.20ohms at 20°C and a resistance of 0.30ohms at 110°C. Find the temperature coefficient of resistance of the iron used in the wire.
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