COLLEGE PHYSICS LL W/ 6 MONTH ACCESS
COLLEGE PHYSICS LL W/ 6 MONTH ACCESS
2nd Edition
ISBN: 9781319414597
Author: Freedman
Publisher: MAC HIGHER
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Chapter 19, Problem 76QAP
To determine

(a)

Current in the dryer

Expert Solution
Check Mark

Answer to Problem 76QAP

Current in the dryer= 15.1 A

Explanation of Solution

Given info:

  Voltage = 110 VPower = 1650 WDistance of the current from user head = 3 cmEarth's magnetic field = 5*10-5 T

Formula used:

  P=V2RV=potentialP=PowerR=resistance

  B=μ0I2πdB=Magnetic fieldμ0=permeability of free spaceI=Current in wired=Radius from the wire

  V=IRV=potentialI=Current in wireR=resistance

Calculation:

  P=V2R1650= 1102RR=7.3 Ω

  V=IR110=I*7.3I=15.1 A

Conclusion:

Current in the dryer= 15.1 A

To determine

(b)

Resistance in the dryer

Expert Solution
Check Mark

Answer to Problem 76QAP

Resistance in the dryer= 7.3 Ω

Explanation of Solution

Given info:

  Voltage = 110 VPower = 1650 WDistance of the current from user head = 3 cmEarth's magnetic field = 5*10-5 T

Formula used:

  P=V2RV=potentialP=PowerR=resistance

  B=μ0I2πdB=Magnetic fieldμ0=permeability of free spaceI=Current in wired=Radius from the wire

  V=IRV=potentialI=Current in wireR=resistance

Calculation:

  P=V2R1650= 1102RR=7.3 Ω

Conclusion:

Resistance in the dryer= 7.3 Ω

To determine

(c)

Magnetic field does the dryer produce at the user's head

Expert Solution
Check Mark

Answer to Problem 76QAP

Magnetic field does the dryer produce at the user's head= 4866.67*107 T

  BBearth=4866.67*107 T5*105 T=9.73

There's a possibility of health concerns due to the use of hair dryer

Explanation of Solution

Given info:

  Voltage = 110 VPower = 1650 WDistance of the current from user head = 3 cmEarth's magnetic field = 5*10-5 T

Formula used:

  P=V2RV=potentialP=PowerR=resistance

  B=μ0I2πdB=Magnetic fieldμ0=permeability of free spaceI=Current in wired=Radius from the wire

  V=IRV=potentialI=Current in wireR=resistance

Calculation:

  B=μ0I2πdB=4π* 10 7*7.32π*3* 10 3B=4866.67*107 T

Comparison with Earth's magnetic field,

  BBearth=4866.67*107 T5*105 T=9.73

There's a possibility of health concerns due to the use of hair dryer

Conclusion:

Magnetic field does the dryer produce at the user's head= 4866.67*107 T

  BBearth=4866.67*107 T5*105 T=9.73

There's a possibility of health concerns due to the use of hair dryer

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Chapter 19 Solutions

COLLEGE PHYSICS LL W/ 6 MONTH ACCESS

Ch. 19 - Prob. 11QAPCh. 19 - Prob. 12QAPCh. 19 - Prob. 13QAPCh. 19 - Prob. 14QAPCh. 19 - Prob. 15QAPCh. 19 - Prob. 16QAPCh. 19 - Prob. 17QAPCh. 19 - Prob. 18QAPCh. 19 - Prob. 19QAPCh. 19 - Prob. 20QAPCh. 19 - Prob. 21QAPCh. 19 - Prob. 22QAPCh. 19 - Prob. 23QAPCh. 19 - Prob. 24QAPCh. 19 - Prob. 25QAPCh. 19 - Prob. 26QAPCh. 19 - Prob. 27QAPCh. 19 - Prob. 28QAPCh. 19 - Prob. 29QAPCh. 19 - Prob. 30QAPCh. 19 - Prob. 31QAPCh. 19 - Prob. 32QAPCh. 19 - Prob. 33QAPCh. 19 - Prob. 34QAPCh. 19 - Prob. 35QAPCh. 19 - Prob. 36QAPCh. 19 - Prob. 37QAPCh. 19 - Prob. 38QAPCh. 19 - Prob. 39QAPCh. 19 - Prob. 40QAPCh. 19 - Prob. 41QAPCh. 19 - Prob. 42QAPCh. 19 - Prob. 43QAPCh. 19 - Prob. 44QAPCh. 19 - Prob. 45QAPCh. 19 - Prob. 46QAPCh. 19 - Prob. 47QAPCh. 19 - Prob. 48QAPCh. 19 - Prob. 49QAPCh. 19 - Prob. 50QAPCh. 19 - Prob. 51QAPCh. 19 - Prob. 52QAPCh. 19 - Prob. 53QAPCh. 19 - Prob. 54QAPCh. 19 - Prob. 55QAPCh. 19 - Prob. 56QAPCh. 19 - Prob. 57QAPCh. 19 - Prob. 58QAPCh. 19 - Prob. 59QAPCh. 19 - Prob. 60QAPCh. 19 - Prob. 61QAPCh. 19 - Prob. 62QAPCh. 19 - Prob. 63QAPCh. 19 - Prob. 64QAPCh. 19 - Prob. 65QAPCh. 19 - Prob. 66QAPCh. 19 - Prob. 67QAPCh. 19 - Prob. 68QAPCh. 19 - Prob. 69QAPCh. 19 - Prob. 70QAPCh. 19 - Prob. 71QAPCh. 19 - Prob. 72QAPCh. 19 - Prob. 73QAPCh. 19 - Prob. 74QAPCh. 19 - Prob. 75QAPCh. 19 - Prob. 76QAPCh. 19 - Prob. 77QAPCh. 19 - Prob. 78QAPCh. 19 - Prob. 79QAPCh. 19 - Prob. 80QAPCh. 19 - Prob. 81QAPCh. 19 - Prob. 82QAPCh. 19 - Prob. 83QAPCh. 19 - Prob. 84QAPCh. 19 - Prob. 85QAPCh. 19 - Prob. 86QAP
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