Two resistors with values of 27 and 19,respectively, are connected in series and

Question

Two resistors with values of 27 and 19,respectively, are connected in series and hooked to a 12Vbattery. a) How much current is in the circuit? ___A b)How much power is expended in the circuit? ____W Find the force of electrical attration between a proton and anelectron that are 9.5 x 10-^11m apart. __N Compare this to the gravitational force between theseparticles. ____N Two resistors with values of 27 and 19,respectively, are connected in series and hooked to a 12Vbattery. a) How much current is in the circuit? ___A b)How much power is expended in the circuit? ____W Find the force of electrical attration between a proton and anelectron that are 9.5 x 10-^11m apart. __N Compare this to the gravitational force between theseparticles. ____N

Explanation / Answer

Two resistors R 1   = 27 , R2   = 19 are connected inseries                   Req   =   R1 +R2                             = 27 + 19                             = 46 a ) current in the circuit   i = V/ R                                            =12 V / 46                                           = 0.26 A b ) Power P = i V                        = 0.26 A * 12 V                         = 3.13 W c )   Force F = kq1 q2 / r2                          = 9*109 * ( 1.6*10-19 C ) (1.6*10-19 C ) / ( 9.5*1011m)2                         = 2.55*10-52 N d )   FG = G memp / r2                     F=     6.67*10-11 *9.11*10-31 * 1.67*10-27 / (9.5*1011 m)2                                 F   = 1.12 *10-47 N                         

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