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It depends on whether it can withstand a short circuit or not.

Please post a schematic.

An easy way is to connect a 100R power resistor and measure the voltage, it should be 35V.

You might be able to get away with a 10R resistor or even just measuring the current with a meter but it depends on the power supply.

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The resistor needs to be rated for at least 5W and don't leave it connected for very long - the power dissipation will be 0.352*100 = 12.25W which is much higher than the maximum rating but will be fine, as long as it's only connected for a few seconds and a large heatsink is used.

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