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- How would you go about improving the determination of the electrical resistance of a given material in resistor color coding activity?Use the slope calculated and Equation #4 to calculate the mass-to-charge ratio (m/q) and record this value in your datasheet. **Note that all other variables in Equation #4 (except r and I) are constants for this experiment. The slope of the graph is 3.09 x 10-3 which is the relationship: r2 vs 1/I2. The constants are: V= 150 V, a = 0.158 m, N= 130, Mu0= 4pi x10-7. The image shows what equation should be used.**By measuring the currents and times and then draw the current vs time graph using the measurementat the lab for ε =8 V, R=1M Ω and C=4.7μF. What is the current at t=12 s? values obtained after the experiment:I0=8μAApproximate time until current becomes zero= 25 s
- According to Sylvania, a light-bulb manufacturer, its 40 W CFL light consumes 9 watts and produces 495 lumens. What is the efficacy for this light?By measuring the currents and times and then draw the current vs time graph using the measurementat the lab for ε =8 V, R=1M Ω and C=1μF. What is the current at t=2.5 s? f values obtained after the experiment:I0=8μAApproximate time until current becomes zero= 5.7 sThe voltage V (volts), current I (amperes), andresistance R (ohms) of an electric circuitare related by the equation V = IR. Suppose that V is increasing atthe rate of 1 volt/sec while I is decreasing at the rate of 1/3 amp/sec. Let t denote time in seconds. What is the value of dI/dt?
- The voltage V (volts), current I (amperes), andresistance R (ohms) of an electric circuitare related by the equation V = IR. Suppose that V is increasing atthe rate of 1 volt/sec while I is decreasing at the rate of 1/3 amp/sec. Let t denote time in seconds. What is the value of dV/dt?A brine sample recovered from depth of 8400 ft has a measured resistivity of 0.28 ohm-m at temperature of 68F. What is the resistivity of this brine in the reservoir?Calculate the R of the resistor and it's uncertainty of experimental value.
- What percentage of Stanley Milgram's participants shocked all the way to 450 volts?The radiation resistance of a small dipole current element of length l at a frequency of 3 GHzis 3 ohms. If the length is changed by 1%, then the percentage change in the radiationresistance, rounded off to two decimal places, is______________%.If the acceleration voltage is 150 kV, calculate the half-life thickness knowing that the 10% reduction thickness is 0.256 mm.