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Activity #3: How A and V placed in a circuit? Directions: Complete the sentence by supplying the correct term in the space provided. The voltmeter
Activity #3: How A and V placed in a circuit? Directions: Complete the sentence by supplying the correct term in the space provided. The voltmeter (V) is connected in parallel with the device. The ammeter (A) is connected in series in the circuit so that all current passing through the circuit must pass through and be measured by the ammeter. Voltmeter VVoltmeter V Battery A Ammotor1. In a circuit, if the resistance is left constant and the voltage is doubled (for example, from 3V to 6V), how does the current change? Does this conform to Ohm's law? a. The current will get doubled. This conforms to Ohm's law as the current is proportional to the voltage. b. The current will double. This does not conform to Ohm's law as the current is proportional to the voltage. c. The current will increase by half. This conforms to Ohm's law as the current is proportional to the voltage. d. The current will decrease by half. This does not conform to Ohm's law as the current is proportional to the voltage. 2. Which of the following SI unit for the electrical current? a. voltage b. ampere c. resistance d. ohms 3. A device used to measure current? a. voltmeter b. odometer C. ammeter d. speedometer An electrical bulb draws 5 A current when connected to a 100-V wall outlet, thed. speedometer 4. An electrical bulb draws 5 A current when connected to a lV wall outlet, the resistance of bulb is: ELSE} b.2lil c.1009 d.5 5. The statement which correctly represents hm's law: Directions: Complete the statement by supplying the right unit/ term on the space provided. Ohms law states that, is directly proportional to and inversely proportional toActivity #1: Circuit Diagram Directions: Answer the following questions. Write your answer in the space provided. a. What is a circuit diagram? b. Draw the labeled diagram of an electric circuit comprising of a cell, a resistor, an ammeter, a voltmeter, and a switch (or plug key).B. Parallel Circuit: 1. What is the equivalent resistance of this circuit? 150 0 250 0 50 0Activity #3 Comparing the resistance, current, and voltage in series and parallel Directions: Complete the table below. Write the formula on the space provided, Series Formula Parallel Formula Current It = 11=12=13... Voltage Vt = V1=V2=V3... Resistance R1 + R2 +R3... E WRAP-UP Directions. Underline the correct answer from the statement below. . As load (resistance) is being increased in series connection, the current (decreases, increases). . The current (decreases, increases) as the load (resistance) in the parallel connection is increased.Directions: Read the questions carefully. Choose the best answer from the choices given. 1. The voltage drop across parallel resistors is a. the same for all resistors 13. greater for the larger resistors :3. less for the larger resistors d. greater for the smaller resistors 2. What happens to the current in a parallel circuit when the load or resistance is increased?I a. current increases 'o. current decreases c. current stays the same :1. current uctuates 3. Given the circuit diagram below, what equation should he used to nd the total RI R2 R = VT Requiv a. Requiv=1/R1+1/R2+1/R3. b. Rt= R1 + R2+ R3... c. Rt = R1 - R2 - R3 d. Rt = R1 x R2 x R3 4. How is an ammeter connected in a circuit to measure current flowing through it? a. An ammeter is connected in series in a circuit to measure current flowing through it. b. An ammeter is connected in parallel in a circuit to measure current flowing through it. c. An ammeter can be connected either in series or in parallel in a circuit to measure current through it. d. An ammeter can be connected anywhere in the circuit. 5. How many 10-Q resistors must be connected in series to make an equivalent resistance of 80 0? a. 80 b. 8 c. 20 d. 40
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