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Is there any other way to measure conductivity that the event rules permit other than just placing two metal probes in the solution? There's also electromagnetic induction using coils in the water, but that might not be plausible. The conductivity measuring system with two metal probes conducting el...

1) Lenz's Law 2) Input resistance is infinite 3) R=p*L/A; Resistance= resistivity*length of wire/cross sectional area 4) Eddy Currents are loops of electrical current induced within conductors by a changing magnetic field in the conductor according to Faraday's law of induction Correct. Your turn t...

Since no one is posting any questions: 1) Which law is analogous to Newton's Third Law and states that the direction of an induced current always opposes the magnetic field that produces it? 2) What is one assumption of an ideal operational amplifier? 3) Write the equation for the resistance of a wi...

Anybody have any tips on what to study for this event I did this event last year and I found that the hyperphysics thermodynamics website has great resources. To understand the concepts better, I would suggest watching Khan Academy videos on thermodynamics. For the history part of the test, I would...

This is my first time doing this event and I was wondering other people's strategies for this event. My idea so far is to memorize the simple algorithms and stuff like that. I just wanted to know if others had a similar or different approach. Thanks This will be long. Blocks to Know|Move Turn Point...

This is my first time doing this event and I was wondering other people's strategies for this event. My idea so far is to memorize the simple algorithms and stuff like that. I just wanted to know if others had a similar or different approach. Thanks This will be long. Blocks to Know|Move Turn Point...

This is my first time doing this event and I was wondering other people's strategies for this event.

My idea so far is to memorize the simple algorithms and stuff like that. I just wanted to know if others had a similar or different approach.

Thanks

Does anyone have an idea of what types of electrical control devices we need to know about as explained in 3. c. vii.? I was wondering if we might need to know about switches, relays, and solenoids too. Also, I was wondering what everyone is doing to study for the simple measurements, constructions,...

How many rolls of pennies can your hovercrafts hold?

I just want to see our performance compared to other teams.

Asking questions a week before states yay 1). Should attack rate be in a percentage form? Should relative risk be in percentage form? Should odds ratio be in percentage form? 2). This was a question on a test: Number ill and exposed = 51, Number not ill and exposed = 34, Number ill and not exposed ...