51.   In a car that is driven by electric motors, the motors can be used as brakes, too, converting momentum into electric current and slowing the vehicle.

52.   In arcing, an electric current jumps from the copper wires to the outside of the insulation, where it forms sparks.

53.   In the case of sound equipment, it does this by adding a resistive network that can gradually be removed to let more and more electric current through.

54.   In TURP, the end of the catheter has a wire loop that carries electric current, cutting and sealing off the tissue it touches.

55.   Made of thin, lightweight films of piezoelectric material, their shape changes in response to the flow of electric current.

56.   Measurement of electric currents show that these positive bolts can be twice as strong as negative lightning.

57.   Measurement of electric currents shows that these positive bolts can be twice as strong as negative lightning.

58.   Measurements of electric currents show that these positive bolts can be twice as strong as negative lightning.

59.   Only by cleverly counterbalancing the influences of electric currents and magnetic fields have experts achieved some of their goals.

60.   Phones ring when a signal is detected during one or more cycles of electric current.