The frequency of the sinusoidal graph is 3 Hz.
<h3>What is frequency of sinusoidal graph?</h3>
The frequency of a sinusoidal graph is the number of complete waves for every 2π units.
The frequency of the sinusoidal graph is determined by counting the number of complete waves from to
units.
From a sketch of the graph;
Thus, the frequency of the sinusoidal graph is 3 Hz.
Learn more about frequency of sinusoidal graphs here: brainly.com/question/12075992
If the current is pointing into the page, the direction of the magnetic field will be upwards.
<h3>What is direction of magnetic field?</h3>
The Maxwell right-hand thumb rule is used to indicate the direction of the magnetic field in the direction of the current or charge.
According to this rule, "if the thumb of the right-hand points along the direction of the current, then the remaining curled fingers of the same hand give the magnetic field direction due to the current".
Thus, when the current is pointing into the page, the direction of the magnetic field will be upwards.
Learn more about magnetic field here: brainly.com/question/7645789
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