A thin metal bar of 50.0 cm and a mass of 750 g rests on two metal supports. These supports are connected to a circuit composed of a resistor and a voltage source. Amagnetic field of 0.450 T acts on the bar as shown in the figure. If the resistance is 25.0Ω, what is the maximum voltage that can be applied without interrupting the circuit at the supports?

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A thin metal bar of 50.0 cm and a mass of 750 g rests on two metal supports. These supports are connected to a circuit composed of a resistor and a voltage source. Amagnetic field of 0.450 T acts on the bar as shown in the figure. If the resistance is 25.0Ω, what is the maximum voltage that can be applied without interrupting the circuit at the supports?

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