Electrostatics and MRI Quiz
Authored by Wilton Muriithi
Health Sciences
University
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66 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary force that governs electrostatics?
Magnetic force
Gravitational force
Electric force
Nuclear force
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In electrodynamics, what is the relationship between electric current and magnetic fields?
They are independent
Electric current creates a magnetic field
Magnetic fields create electric current
Both A and B
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary component of an MRI machine that generates a magnetic field?
Gradient coils
Radiofrequency coils
Superconducting magnets
RF amplifier
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the basic principle behind MRI imaging?
X-ray absorption
Nuclear magnetic resonance
Electromagnetic radiation
Electrical impedance
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary concern when working near an MRI machine?
Loud noise
Radiation exposure
Strong magnetic fields
Electrical hazards
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Patients with which of the following devices are usually contraindicated for an MRI?
Pacemaker
Hearing aid
Dental fillings
Contact lenses
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What do gradient coils do in an MRI scanner?
Generate the main magnetic field
Produce radiofrequency pulses
Create spatial variations in the magnetic field
Detect the MRI signal
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