How many appliances will melt aluminum wire?

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    Aluminum Wire
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The discussion focuses on setting up an experiment to determine how many appliances can melt aluminum wire in a circuit. It is confirmed that the appliances should be connected in parallel, as this configuration allows the total current to be the sum of the currents from each appliance. The key point is that the current required for each appliance adds up, and the experiment should aim to find the total current needed to melt a specific thickness of aluminum wire. Understanding the relationship between current and wire thickness is essential for the experiment's success. Overall, the setup involves calculating the cumulative current to assess the melting point of the wire.
dpbrown
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so i have to do a independent lab for physics which determines how many appliances will melt aluminum wire when in a circuit.

i'm having trouble getting started with how to set everything up, does anyone know how i should go about it?
 
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Presumably the appliances are connected in parallel? How does each added appliance affect the total current drawn?
 
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One appliance will do it if the aluminum wire is thin enough.
 
yes, it would be connected in a parallel circuit.
wouldn't the current needed for each appliance add up to the total current needed (I=I1+I2+I3...)? so you would just need to find the current needed to melt a certain thickness of wire?
 
dpbrown said:
yes, it would be connected in a parallel circuit.
wouldn't the current needed for each appliance add up to the total current needed (I=I1+I2+I3...)? so you would just need to find the current needed to melt a certain thickness of wire?
That sounds reasonable to me.
 
Thread 'Variable mass system : water sprayed into a moving container'

Thread 'Variable mass system : water sprayed into a moving container'

Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
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