Faradays law - Study guides, Class notes & Summaries

NETA 2 Combined Study Guide Latest Update 100% Correct current Galvanometers are used to measure what 105A A 4-20mA single CT has a max range of 150 amp what is the amps at 14mA? the metal end caps of ferrule fuses and the blades on knife-blade fuses. When testing fuses, whether by resistance measurement or voltage measurement, the test probes should contact______________ or _______________. Liquid transformers Buchholz relays are used to protect: 100mW For high-voltage b...

What provides the external magnetic field in MRI? Correct Answer The MRI machine The patient is said to be ____ by the MRI machine Correct Answer magnetised Where does the radiofrequency pulse come from? Correct Answer the MRI machine What does the radiofrequency pulse provided by the MRI machine do? Correct Answer allows patient photons to spine in phase with each other Where are the coils used to the detect the signal placed? Correct Answer on the MRI table How are MRI signals d...

Active Shielding ~~> The use of a coil of wire, with an electrical current running through it, to produce an electromagnetic field opposing the static magnetic field, to reduce the fringe field. Bsub0 ~~> The unit used to describe the static magnetic field. Deflection ~~> The amount of attraction an object has to the static magnetic field. Diamagnetism ~~> A weakly repulsive force when placed in a strong static magnetic field. Faradays Law of Induction 2 | P a g ...

MRSO: Basic Physics Questions A Pulse that uses multiple 180 degree refocusing pulsing is the? Spin Echo What are Eddy currents created from? Faradays Law What does Faradays law say will increase the induction of a voltage? Strength and speed of a changing magnetic field When activated, what is used to produce resonance in hydrogen within a patient? Time varying RF We are able to localize a slice within our patient because of? Time varying gradient What does Ohm's...

Is SNR proportional or inversely proportional to voxel volume - ANSWERS-Proportional 3 fields used in MRI - ANSWERS--static magnetic field -TVMF (gradient field) -RF field 3 main types of magnets used - ANSWERS--Superconducting (most common_ -Resistive -Permanent FDA limits for the 3 fields in MRI - ANSWERS-Static field: 2T TVMF: 3T/s RF field: - does not cause an increase in temperature of more than .5 deg C or any body part of 1 deg C -SAR does not exceed 1W/kg avg over 25% o...

NETA 2 Combined study guide exam with correct answers 2024 verified current - CORRECT ANSWER-Galvanometers are used to measure what 105A - CORRECT ANSWER-A 4-20mA single CT has a max range of 150 amp what is the amps at 14mA? the metal end caps of ferrule fuses and the blades on knife-blade fuses. - CORRECT ANSWER-When testing fuses, whether by resistance measurement or voltage measurement, the test probes should contact______________ or _______________. Liquid transformers - CORRECT...

What type of output wave forms produced by an astable multivibrator. -Correct Answer Square wave or rectangular. What happens if you connect the diodes backwards in a full wave bridge rectifier. -Correct Answer Polarity will be reversed. What type of transducer is used when large scale movement is required. -Correct Answer Potentiometers. Which type of diagram will tell the size of an electrical wire. -Correct Answer Wiring diagram. The "negative temperature coefficient" of a t...

Induced EMF in closed loop is proportional to flux correct answers Faradays Law What are the two types of power with in AC circuits associated with? correct answers Resistance and reactance What can cause thermal runaway? correct answers High battery cell temp What type of GCUs are there? correct answers Electro mechanical and Solid state Lenz's Law correct answers The direction of an induced current is such that it'll oppose the change causing it What is not need in a varia...

MRSO Mock Test 1 - Questions with 100% Correct Answers Which of the following describes when a non-ferrous, electrically conductive object is repulsed by a static magnetic field? A. Fourier Transfomation B. Larmor equation C. Lenz force D. Ohms law What is the purpose of resonance? A. Resonance is not used in MRI B. To tilt the nuclei of interest away from B0 C. To slow down the processional frequency or nuclei D. To align nuclei with B0 Induction of electrical current in our patient from chan...

IBEC GALVANICThe following terms are appropriate when talking about galvanic electrolysis: - correct answer Multiple needle galvanic, direct current electrolysis, electrolysis The first person to describe the use of galvanic electrolysis for the treatment of unwanted hair is: - correct answer Dr.Charles Michel The scientific term "electrolysis" refers to: - correct answer The E effect of direct current flowing through a salt solution. During galvanic electrolysis with the negative ele...