Researching Torque, Current and Flux Density

AI Thread Summary
To solve the problem of predicting torque in a DC motor with increased flux density and armature current, it's essential to understand the relationship between torque, current, and flux density. The discussion highlights the need for a relevant formula that connects these variables, indicating that torque is influenced by both the current flowing through the armature and the magnetic flux density. A suggested resource for further research is HyperPhysics, which provides foundational information on the topic. The inquiry emphasizes a desire for guidance rather than a direct solution, reflecting a common challenge in understanding motor dynamics. Engaging with the right formulas and concepts will be crucial for finding the answer.
monkeyhead
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Homework Statement


For this question you must research, to help you with working out your answer
a) A dc motor develops a torque of 600Nm when its armature carries a current of 30 Amperes. Predict the torque that will be developed when a 12% increase in flux density has taken place and the armaure current is increased to 35 amperes.

The Attempt at a Solution


I have to admit, I'm pretty stumped for this one! I have no clue on what formula links torque,current and flux density together what so ever. I'd imagine that there must be some sort of formula linking all those together right?
I'm not asking for someone to solve this for me but I would gladly appreciate a push in the right direction into where I should be looking! Any suggestions much appreciated
Many thanks
Matt
 
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