# Circuits Circuit Analysis

This essay sample on Circuits Circuit Analysis provides all necessary basic information on this matter, including the most common “for and against” arguments. Below are the introduction, body and conclusion parts of this essay.

In which circuit would current flow through resistor RI but not through resistor RE while switch S is open? 9. Which circuit diagram below correctly shows the connection of ammeter A and voltmeter V to measure the current through and potential difference across resistor R? 10. In the space below, draw a diagram Of an Operating circuit that includes: ; a battery as a source of potential difference ; two resistors in parallel with each other ; an ammeter that reads the total current in the circuit Base your answers to questions 11 through 13 on the information and diagram below.

A 15-ohm resistor, RI , and a 30-ohm resistor, RE, are to be connected in parallel between points A and B in a circuit containing a 90-volt battery. 1 1 . Complete the diagram above to show the novo resistors in parallel between points A and B.

12. Determine the potential difference across resistor RI . 13. Calculate the current in resistor RI . Page 2 Base your answers to questions 14 through 16 on the information and diagram below, showing all work including the equation and substitution with units. A 50-ohm resistor, an unknown resistor R, a 120-volt source, and an ammeter re connected in a complete circuit.

The ammeter reads 0. 50 ampere. 14. Calculate the equivalent resistance of the circuit. 15. Determine the resistance of resistor R. 16. Calculate the power dissipated by the 50-ohm resistor.

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17. In which circuit would ammeter A show the greatest current? Philippics: Circuits-Circuit Analysis Page 3 period: Base your answers to questions 18 through 22 on the information below and data table at right. Three lamps were connected in a circuit with a battery of constant potential. The current, potential difference, and resistance for each lamp are listed in the data table. There is negligible resistance in the wires and battery. 18. Using standard circuit symbols, draw a circuit showing how the lamps and battery are connected. 19. What is the potential difference supplied by the battery? 20. Calculate the equivalent resistance of the circuit. 21 . If lamp 3 is removed from the circuit, what would be the value of the potential difference across lamp 1 after lamp 3 is removed? 22. If lamp 3 is removed from the circuit, what would be the value of the current in lamp 2 after lamp 3 is removed? 23. In which circuit would ammeter A show the greatest current? Physicians: Circuits-circuit Analysis 4.

A 6-ohm resistor and a 4-ohm resistor are connected in series with a 6- volt battery in an operating electric circuit. A voltmeter is connected to measure the potential difference across the 6-ohm resistor. Draw a diagram of this circuit including the battery, resistors, and voltmeter. Label each resistor with its value. 25. What is the total current in a circuit consisting of six operating 100-watt lamps connected in parallel to a 120-volt source? 2. AAA 3. 600 A 4. 12,000 A 26. The circuit diagram below represents four resistors connected to a 12-volt source. What is the total current in the circuit? 0. 50 A 2. 0 A 8. A 24 A 27.

### Circuits-circuit Analysis

As the number of resistors in a parallel circuit is increased, what happens to the equivalent resistance of the circuit and total current in the circuit? 1. Both equivalent resistance and total current decrease. 2. Both equivalent resistance and total current 3. Equivalent resistance decreases and total current Increases. 4. Equivalent resistance increases and total current decreases. Base your answers to questions 28 and 29 on the circuit diagram below. 28. If switch SSL is open, the reading of ammeter A is 1. 5 A 6. 0 A 29. If switch SSL is closed, the equivalent resistance of the circuit is 8 ohms 2 ohms 3 ohms 6 ohms 30.

Which circuit has the smallest equivalent resistance? Page 5 Base your answers to questions 31 through 33 on the information below. A 5-ohm resistor, a 10-ohm resistor, and a 15-ohm resistor are connected in parallel with a battery. The current through the 5-ohm resistor is 2. 4 amperes. 31 . Using standard circuit symbols, draw a diagram of this electric circuit. In the space at right. 32. Calculate the amount of electrical energy expended in the 5-ohm resistor in 2 minutes. 33. A 20-ohm resistor is added to the circuit in parallel with the other resistors.

Describe the effect the addition of this resistor has n the amount of electrical energy expended in the 5-ohm resistor in 2 minutes. 34. In the circuit diagram below, two 4-ohm resistors are connected to a 16-volt battery as shown. 36. An electric circuit contains a source of potential difference and 5-ohm resistors that combine to give the circuit an equivalent resistance of 15 ohms. In the space below, draw a diagram of this circuit using standard circuit symbols. [Assume the availability of any number Of 5-ohm resistors and wires Of negligible resistance. ] The rate at which electrical energy is expended in this circuit is 1. 8. W 2. IOW 3. 32 w 4. 64 W 35. Two identical resistors connected in series have an equivalent resistance of 4 ohms. The same n. ‘vow resistors, when connected in parallel, have an equivalent resistance Of . 1 ohm 2. 2 ohms 3. 8 ohms 4. 4 ohms page 6 Base your answers to questions 37 through 39 on the diagram below, which represents an electrical circuit consisting of four resistors and a 12-volt battery. 37. What is the current measured by ammeter A? . O. AAA 72 A 38. What is the equivalent resistance fifths circuit? . 72 ohms 18 ohms 3. 0 ohms 0. 33 ohms How much power is dissipated in the 36-ohm resistor? 39. . 110 w 48 W 3. 0 w 4. W 40. Three resistors, 4 ohms, 6 ohms, and 8 ohms, are connected in parallel in an electric circuit. The equivalent resistance of the circuit is 1. Less than 4 ohms 2. Between 4 ohms and 8 ohms 3. Between 10 ohms and 18 ohms 4. 18 ohms 41 . A simple circuit consists of a 100-ohm resistor connected to a battery. A 25-ohm resistor is to be connected in the circuit. Determine the smallest equivalent resistance possible when both resistors are connected to the Base your answers to questions 42 through 44 on the information and diagram below. A 20-ohm resistor and a 30-ohm resistor are connected in parallel to a 12-volt battery as shown.

An ammeter IS connected as shown. 42. What is the equivalent resistance of the circuit? . IQ 12 Q 25 Q 50 43. What is the current reading of the ammeter? 0. 60 A 0. 40 A 0. 20 A 44. What is the power of the 30-ohm resistor? . 4. AWE IOW 30 w 75 w 45. The diagram below shows a circuit with two resistors. What is the reading on ammeter A? . 1. 3 A 2. 1. 5 A 3. 3. AAA 4. 0. 75 A Page 7 Base your answers to questions 46 and 47 on the circuit diagram below, which shows two resistors connected to a 24-volt source of potential difference. 50. A 6-ohm lamp requires 0. 25 ampere of current to operate.