Electronic Principles A zener regulator has an input voltage from 15 to 20 V and a load current from 5 to 20 mA. If the zener voltage is 6.8 V, what value should the series resistor have? 550 Ohm None of these 310 Ohm 400 Ohm 410 Ohm 550 Ohm None of these 310 Ohm 400 Ohm 410 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The dielectric constant of a material is a measure of: the amount of voltage it can withstand before breaking down how well the material concentrates electrostatic lines of force None of these how well the material concentrates magnetic lines of force the amount of opposition to the current flow the amount of voltage it can withstand before breaking down how well the material concentrates electrostatic lines of force None of these how well the material concentrates magnetic lines of force the amount of opposition to the current flow ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements applies to common, non-rechargeable flashlight batteries? Common flashlight batteries are primary wet-cell batteries None of these Common flashlight batteries are primary dry-cell batteries Common flashlight batteries are secondary dry-cell batteries Common flashlight batteries are secondary wet-cell batteries Common flashlight batteries are primary wet-cell batteries None of these Common flashlight batteries are primary dry-cell batteries Common flashlight batteries are secondary dry-cell batteries Common flashlight batteries are secondary wet-cell batteries ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What form of energy is used to maintain an imbalance of charges between the terminals of a battery? Solar energy Chemical energy Electronical energy Mechanical energy None of these Solar energy Chemical energy Electronical energy Mechanical energy None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A low-pass filter: reduces the level of all frequencies by a significant amount has no effect on ac signals passes higher-frequency signals and reduces lower-frequency signals passes lower-frequency signals and reduces higher-frequency signals None of these reduces the level of all frequencies by a significant amount has no effect on ac signals passes higher-frequency signals and reduces lower-frequency signals passes lower-frequency signals and reduces higher-frequency signals None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Determine the resistance value and tolerance of a resistor that has the following color bands; first band is red, second band is red, third band is orange, and the fourth band is gold 22, 000 Ohm, 10% 220 Ohm, 10% 22,000 Ohm, 5% None of these 220 Ohm, 5% 22, 000 Ohm, 10% 220 Ohm, 10% 22,000 Ohm, 5% None of these 220 Ohm, 5% ANSWER DOWNLOAD EXAMIANS APP
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