Check Your Understanding If a European ac voltage source is considered, what is the time difference between the zero crossings on an ac voltage-versus-time graph?
The time difference between the zero crossings of an ac voltage versus time graph for an European voltage source.
Answer to Problem 15.1CYU
The time between two zero crossing is
Explanation of Solution
Formula Used:
The relation between the time period and frequency is,
The expression for the time period between two zero crossing is.
Calculation:
The European frequency is
The value of the time period of an European voltage source is calculated as,\
The value of the time between two zero crossing is calculated as,
Conclusion:
The time between two zero crossing of an European voltage source is
Want to see more full solutions like this?
Chapter 15 Solutions
University Physics Volume 2
Additional Science Textbook Solutions
Essential University Physics (3rd Edition)
Tutorials in Introductory Physics
Physics for Scientists and Engineers with Modern Physics
University Physics with Modern Physics (14th Edition)
The Cosmic Perspective (8th Edition)
Essential University Physics: Volume 1 (3rd Edition)
- For what value of the phase angle between the voltage output of an ac source and the current is the average power output of the source a maximum?arrow_forwardThe peak voltage of an ac supply is 300 V. What is the rms voltage?arrow_forwardExample: (a) What is the value of the peak voltage for 120-V AC power? (b) What is the peak +V, power consumption rate of a 60.0-W AC light bulb? For (a): -Vo Solving the equation Vrms= for the peak voltage Vo and substituting the known value for Vms gives: Vo=2-vZVrms=1.414(120 V)= 170 V. This means that the AC voltage swings from 170 V to -170 V and back 60 times every second. An equivalent DC voltage is a constant 120 V. For (b): Peak power is peak current times peak voltage. Thus, Figure 2. The potential difference V between the terminals of an AC voltage So the power swings from zero to 120 W on hundred twenty times per second (twice each cycle), and the power averages 60 W. fluctuates shown. The Po= loVo = 2(; loVo) = 2Pave. source as mathematical expression for V is given by V = Vosin2nft Po = 2(60.0 W) = 120 W. Average power Activity: Given a transmission line having a line resistance of 5.000 sove for the following. Use the rubrics as your guide in presenting your solution…arrow_forward
- What is the root-mean-square voltage Vrms of the source? What is the frequency f of the source?arrow_forwarda) The peak voltage of an ac supply is 300V. What is the rms voltage?arrow_forwardTwo lightbulbs are designed for use with an ac voltage (rms) of 120 V. One lightbulb is rated at 60 W and the other at 30 W. Which bulb, if either, has the greater filament resistance? O Both bulbs have the same resistance since they are subject to the same voltage. O The 60 W bulb. O The 30 W bulb.arrow_forward
- In an AC circuit containing a resistance load only:a. Does the current reach its maximum peak value at the same instant in timeas does the voltage?b. Does the current reach its minimum value at the same instant in time as doesthe voltage?arrow_forwardAn AC voltage source, with a maximum voltage of 200 V, is connected across a 50 Ω resistor. What is the power dissipated in the resistor?arrow_forwardIf you placed an AC voltmeter across the outlets of a wall socket in Europe, you would measurevoltage of about 220-V. (a) Calculate the peak voltage. (b) Calculate the rms current and peakcurrent through a toaster whose resistance when operating is 15Ω. (c) Calculate the power used bythe toaster.arrow_forward
- When a 5.3-μF capacitor is connected to a generator whose supply voltage is 43-V, the current in the circuit is observed to be 0.7-A. What is the frequency of the applied source? Round your answer to 2 decimal places.arrow_forwardA 1.5 - kΩ resistor is connected to an AC voltage source with anrms voltage of 120 V. (a) What is the maximum voltage acrossthe resistor? (b) What is the maximum current through theresistor? (c) What is the rms current through the resistor?(d) What is the average power dissipated by the resistor?arrow_forwardThe figure shows variation of the current through the heating element with time in an iron when it is plugged into a standard 120 V, 60 Hz outlet. a) What is the resistance of the iron (in Ω)? b) What is the peak voltage (in V)? c) What is the average power (in W)?arrow_forward
- Glencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-Hill