Two particles, each of mass m and charge +q, are connected by a massless inextensible string of length 2L and move in circles about their centre of mass with speed v=qB₀L/m. A uniform magnetic field B is into the page. Electric and gravitational forces are neglected.
Physics · Magnetic effect of current
Two particles, each of mass m and charge +q, are connected by a massless inextensible string of length 2L and move in circles about their centre of mass with speed v=qB₀L/m. A uniform magnetic field B is into the page. Electric and gravitational forces are neglected.
Sub-question 1
The magnetic field magnitude for which no tension is developed in the string is:
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Sub-question 2
If the actual field is half the value found above, the string tension is:
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