Q 12 A galvanometer with a resistance of 25 measures a maximum current of 10 mA 1 What is the amount of resistance needed to be connected to convert it to an ammeter and measures a maximum of 2A? 2- The maximum current that the device can measure if another resistance is connected to it in parallel, the value of which is half of that resistance from the previous point, then calculate the error in the ammeter reading?

Q 12 A galvanometer with a resistance of 25 measures a maximum current of 10 mA 1 What is the amount of resistance needed to be connected to convert it to an ammeter and measures a maximum of 2A? 2- The maximum current that the device can measure if another resistance is connected to it in parallel, the value of which is half of that resistance from the previous point, then calculate the error in the ammeter reading?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

The resistors shown in the figure have the following values: R1= 80 ohms R2= 50 ohms R3= 130 ohms and R4= 200 ohms What is the equivalent resistance between points a and b? What is Req= the equivalent resistance between points band c? What is the equivalent resistance for the entire resistor arrangement (from a to c)? If a voltage difference deltaVac= 13volts is applied across the arrangement (from a to c), what is the total current flowing from a to c? What is the voltage difference between points a and b? What is the voltage difference between points b and c? How much current is flowing across resistor R3? How much current is flowing across resistor R4?
Figure below shows the current-versus-potential-difference graph for a resistor. What is the current through the resistor in Amperes, if a 24-V battery is connected to it? Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement. I (A) 5.0 2.5 Δν (V) 10 5
What are the expected readings of the ideal ammeter A and the ideal voltmeter V in Figure below? 6.00 N 6.00 V 10.0 2 5.00 N 6.00 N 4.50 V Voltage measured in voltmeter V Choose. The current as measured in ammeter A 1.5 V
Question 1 Jonathan connected a bulb of unknown resistance to a 3.7 V battery and measured a current of 1.23 A flowing through the bulb. First Electric Circuit I = 1.23 A Then, he changed the power source to a 5 V battery and connected it to the same bulb. Second Electric Circuit I = ? What current flowing through the bulb can Jonathan claim for his second electric circuit? A 0.60 amps B 1.66 amps C 15.00 amps D 15.15 amps
3. Find the readings of the ammeter and voltmeter in the circuits in Figure 3. The resistance of the voltmeter is Ry = 1 200 Q, the voltage at the battery is U = 80 V, the resistances R1= 300 Q and R2 = 480 N. Disregard the resistance of the battery and the ammeter. R1 Figure 3.
I-V graph, has a slope of 8 , what is the current when the voltage is 10 V ?
The wattage rating of a light bulb is the power it consumes when it is connected across a 120 V potential difference. How does the resistance of a 60 W light bulb compare to that of a 100 W light bulb? A) The 100 W bulb has less resistance. B) The 100 W bulb has the same resistance. C) The 100 W bulb has more resistance.
R1 = 15 N, R2 = 10 N Data Experimental Data Computed % Difference Vr, Voltage Across Battery, V 10 V1 (Voltage Across R1), V V2 (Voltage Across R2), V I: (Current Flowing Through R1) A I: (Current Flowing Through R2) A Total Current, It (A): R2 R1 Page 1 I 2 Q +
30
An electric lamp of resistance 2002 and a conductor of resistance 40 are connected to a 6V battery as shown in the circuit. Calculate: (a) The total resistance of the circuit (b) The current through the circuit (c)The potential difference across the (1) Electric lamp and (ii) Conductor, and (d) Power of the lamp. 4Ω LHHHF 6 V
None
QUESTION 3 The current in an ohmic resistor decreases by 2.00 A when the voltage applied across the resistor decreases from 37.0 V to 6.00 V. Find the resistance (in Q) of the resistor. QUESTION 4 Consider the shown circuit, with the capacitor initially uncharged. When the switch S is moved to point a and the capacitor starts charging, find the time it takes the capacitor to be charged by 51 % of its final maximum charge. 60V 10μF IMO 3MN 2MQ