During an experiment to verify Ohm's law, the current and resistance of a circuit are measured. [Resistance is measured in Ohm (Q) and current in Ampere (A)]. +, R A +, Battery The measured value of the current is I = 2.2+0.1 A and that of the resistance is R = 11±0.5 Q. The voltage applied (in Volts) can be calculated using the formula, V = IR. Calculate the, a) Voltage applied in the circuit (in Volts) = b) Fractional uncertainty in the voltage =

During an experiment to verify Ohm's law, the current and resistance of a circuit are measured. [Resistance is measured in Ohm (Q) and current in Ampere (A)]. +, R A +, Battery The measured value of the current is I = 2.2+0.1 A and that of the resistance is R = 11±0.5 Q. The voltage applied (in Volts) can be calculated using the formula, V = IR. Calculate the, a) Voltage applied in the circuit (in Volts) = b) Fractional uncertainty in the voltage =

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

You measure how long it takes to boil 1 liter of water (starting at room temperature). You repeat the measurement 5 times and the measured times are (all in seconds) • 200 • 215 • 195 • 213 190 What is the uncertainty of your time measurement (don't worry about sig fig usage, answer to 1 decimal place)
Find the uncertainty in a calculated average speed from the measurements of distance and time. Average speed depends on distance and time according to this function v(t,x) = x/t. Your measured distance and time have the following values and uncertainties x 3 meters, x =0,1 meters and t 1.8 seconds and 5t = 1.5 seconds. What is the uncertainty in the average speed, bV ? Units are not needed in your answer.
The voltage V in volts of an electrical circuit is V = IR, where R is the resistance in ohms and I is the current in amperes. R is increasing at a rate of 2 ohms per second, and V is increasing at a rate of 3 volts per second. At what rate is I changing when V = 12 volts and R = 4 ohms?
a) A typical small passenger electric vehicle has a range of 200 km on an electric charge of 33 kWh. Convert this number into J/km (Joules per kilometer traveled). b) A comparably sized gasoline powered vehicle to (a) is rated as 25 miles per gallon. Convert this number into J/km (Joules per kilometer traveled). c) If gasoline costs $10.00 per gallon, and electricity $0.30 per kWh what is the difference in the cost of fuel per kilometer travelled between the electric vehicle in (a) and the gasoline powered vehicle in (b)? d) Surveys of EV owners show that they charge at home 70% of the time. Let us assume that for the remaining 30% they charge at a 60 kW rated "fast-charge” station. If patterns of travel remain the same, but we swap all our gasoline vehicles for electric vehicles, what is the ratio between installation of fast charging stations to gasoline pumps retired. e) The Chicago Transit Authority has about 2700 buses that travel a total of 240,000 miles daily. A typical bus…
(a) Number i Units (b) Number i Units (c) (d) (e) > > > >
1Pa = 1N/m true or false?
In the laboratory, a measurement for (x + &) was taken as (+ &) = (33.7+0.5)S. Find the value for its reciprocal 1 1 士 (x + &x) Select one: 1 O a (0.030 ± 0.000) 1 O b. (0.0297±0.000) 1 Oc (0.030 +0.0004) o d. (0.0297±0.0004) The mass of an object was measured eight times on a balance readable to +1 a and the followng values were recorded: (298.
In Figure (a), string 1 has a linear density of 2.08 g/m, and string 2 has a linear density of 4.84 g/m. They are under tension due to the hanging block of mass M = 677 g. Calculate the wave speed on (a) string 1 and (b) string 2. (Hint: When a string loops halfway around a pulley, it pulls on the pulley with a net force that is twice the tension in the string.) Next the block is divided into two blocks (with M, + M2 = M) and the apparatus is rearranged as shown in Figure (b). Find (c) M1 and (d) M2 such that the wave speeds in the two strings are equal. - String 1 String 2 Knot M (а) - String 1 String 2 M1 M2 (b)
Q.6 Give the reading of the micrometers below: 10 20 50 60 45 40 d=? mm
7
An infant's pulse rate is measured to be (130+ 5.0) beats/min. What is the percent uncertainty in this measurement? The percent uncertainty is %.